AAD (American Academy of Dermatology). 2002. AAD Sunscreen Monograph Letter. (Lim HW, ed). Washington, DC: American Academy of Dermatology Association.

AAD (American Academy of Dermatology). 2009a. Position Statement on Vitamin D (Approved by the Board of Directors November 1, 2008) (Amended by the Board of Directors June 19, 2009). Available: www.aad.org/forms/policies/uploads/ps/ps-vitamin%20d.pdf [accessed April 6 2010].

AAD (American Academy of Dermatology). 2009b. Position Statement on Broad Spectrum Protection of Sunscreen Products. (Amended by the Board of Directors November 14, 2009) Available: http://web1.neton-line.com/forms/policies/Uploads/PS/PS-Broad-Spectrum%20Protection%20of%20Sunscreen%20Products%2011-16-09.pdf

Aceituno-Madera P, Buendia-Eisman A, Arias-Santiago S, Serrano-Ortega S. 2010. Changes in the incidence of skin cancer between 1978 and 2002. Actas Dermosifiliogr 101(1): 39-46.

ASC (American Skin Cancer Society). 2007. Skin Cancer Prevention and Early Detection. American Skin Cancer Society.ACS (American Cancer Society). 2010. Skin cancer facts. Accessed May 12, 2010 at http://www.cancer.org/docroot/PED/content/ped_7_1_What_You_Need_To_Know_About_Skin_Cancer.asp.

Adams JS, Hewison M. 2010. Update in vitamin D. J Clin Endocrinol Metab 95(2): 471-8.

Allen JM, Gossett CJ, Allen SK. 1996. Photochemical formation of singlet molecular oxygen in illuminated aqueous solutions of several commercially available sunscreen active ingredients. Chemical Research in Toxicology 9(3): 605-609

AMA (American Medical Association). 2009. Report 4 of the Council on Science and Public Health (A-09): Appropriate Supplementation of Vitamin D, Resolution 425, A-08, Reference Committee D.

Antaria 2010. United States Patent Application Publication, US 2010/0310871. Mesoporous Zinc Oxide Powder and method for production thereof. Pub. Date, Dec 9, 2010.

Ashby J, Tinwell H, Plautz J, Twomey K, Lefevre PA. 2001. Lack of binding to isolated estrogen or androgen receptors, and inactivity in the immature rat uterotrophic assay, of the ultraviolet sunscreen filters Tinosorb M-active and Tinosorb S. Regul Toxicol Pharmacol 34(3): 287-91.

ASTM. 2006. E 2456-06. Standard Terminology Relating to Nanotechnology, ASTM International, December 2006. http://www.astm.org/Standards/E2456.htm

Autier P, Dore JF, Schifflers E, Cesarini JP, Bollaerts A, Koelmel KF, et al. 1995. Melanoma and use of sunscreens: an EORTC case-control study in Germany, Belgium and France. The EORTC Melanoma Cooperative Group. Int J Cancer 61:749-55.

Autier P, Dore JF. 1998. Influence of sun exposures during childhood and during adulthood on melanoma risk. EPIMEL and EORTC Melanoma Cooperative Group. European Organisation for Research and Treatment of Cancer. Int J Cancer 77:533-7.

Autier P, Dore JF, Reis AC, Grivegnee A, Ollivaud L, Truchetet F, et al. 2000. Sunscreen use and intentional exposure to ultraviolet A and B radiation: a double blind randomized trial using personal dosimeters. Br J Cancer 83(9): 1243-8.

Autier P. 2009. Sunscreen abuse for intentional sun exposure. Br J Dermatol 161 Suppl 3: 40-5.

Bakos L, Wagner M, Bakos RM, Leite CS, Sperhacke CL, Dzekaniak KS, et al. 2002. Sunburn, sunscreens, and phenotypes: some risk factors for cutaneous melanoma in southern Brazil. Int J Dermatol 41(9): 557-62.

Baron ED, Stevens SR. 2002. Topical Review: sunscreens and immune protection. Br J Dermatol 146: 933-37.

BASF 2000. Z-Cote microfine zinc oxide Available: http://www.solsunguard.com/zcote_brochure.pdf [accessed 5/15/2010]

BASF. 2006. Technical Information: Uvinul, T-Lite and Z-COTE grades.

BASF 2009. Technical Information UV filters. BASF The Chemical Company. Available: http://www.personal-care.basf.com/pdf/Statements/Technical%20Informations/EN/Cosmetic%20Ingredients/04_050103e_UV%20filters.pdf [accessed May 17, 2010].

BASF 2011. Sunscreen Simulator: An efficient Tool to Predict UVB and UVA Protection. http://www.sunscreensimulator.basf.com/Sunscreen_Simulator/

BCCDC. 2003. Radiation Issue Notes (RIN) #15 – Sunscreens and their correct application. British Columbia Centre for Disease Control.

Bech-Thomsen N, Wulf HC. 1992. Sunbathers’ application of sunscreen is probably inadequate to obtain the sun protection factor assigned to the preparation. Photodermatol Photoimmunol Photomed 9(6): 242-4.

Beeby A, Jones AE. 2000. The photophysical properties of menthyl anthranilate: A UV-A sunscreen. Photochemistry and Photobiology 72(1): 10-15.

Beitner H, Norell SE, Ringborg U, Wennersten G, Mattson B. 1990. Malignant melanoma: aetiological importance of individual pigmentation and sun exposure. Br J Dermatol 122(1): 43-51.

Benech-Kieffer F, Wegrich P, Schwarzenbach R, Klecak G, Weber T, Leclaire J, Schaefer H. 2000. Percutaneous absorption of sunscreens in vitro: Interspecies comparison, skin models and reproducibility aspects. Skin Pharmacology and Applied Skin Physiology 13(6): 324-335.

Benech-Kieffer F, Meuling WJ, Leclerc C, Roza L, Leclaire J, Nohynek G. 2003. Percutaneous absorption of Mexoryl SX in human volunteers: comparison with in vitro data. Skin Pharmacol Appl Skin Physiol 16(6): 343-55.

Berne B, Ros AM. 1998. 7 years experience of photopatch testing with sunscreen allergens in Sweden. Contact dermatitis 38(2): 61-64.

Berset G, Gonzenbach H, Christ R, Martin R, Deflandre A, Mascotte R, et al. 1996. Proposed protocol for determination of photostability. Part I: Cosmetic UV-Filters. Int J Cosmet Sci 18: 167-77.

BfR. 2006. Frequently asked questions on nanotechnology. German Federal Institute for Risk Assessment (BfR). November 15, 2006. http://www.bfr.bund.de/cm/279/frequently_asked_questions_on_nanotechnology.pdf

Bikle DD. 2008. Vitamin D receptor, UVR, and skin cancer: a potential protective mechanism. J Invest Dermatol. 28(10): 2357-61.

Bonda CA. 2005. The Photostability of Organic Sunscreen Actives: A Review. In: Sunscreens: Regulations and Commercial Development, 3rd edition (Shaath NA, ed). Boca Raton, FL: Taylor & Francis.

Börm PJ, Robbins D, Haubold S, Kuhlbusch T, Fissan H, Donaldson K, et al. 2006. The potential risks of nanomaterials: a review carried out for ECETOC. Part Fibre Toxicol 3: 11.

Boyles S. FDA Wrapping Up Sunscreen Label Changes Among the Label Changes: SPF Claims of More Than 50+ Won’t Be Allowed. WebMD Health News, 5/21/2009. Accessed May 18 2010 at http://www.webmd.com/skin-problems-and-treatments/news/20090521/fda-wrapping-up-sunscreen-label-changes.

Branna T. 2011. “Recent FDA Action Draws Big Crowd in Florida.” Happi – Household and Personal Products Industry. October 2011. http://www.happi.com/articles/2011/10/recent-fda-action-draws-big-crowd-in-florida

Brezová V, Gabčová S, Dvoranová D, Staško A. 2005. Reactive oxygen species produced upon photoexcitation of sunscreens containing titanium dioxide (an EPR study). Journal of Photochemistry and Photobiology B: Biology 79(2): 121-34.

Cadet J, Douki T, Ravanat JL, Di Mascio P. 2009. Sensitized formation of oxidatively generated damage to cellular DNA by UVA radiation. Photochem Photobiol Sci 8(7): 903-11.

Calafat AM, Wong L.-Y, Ye X, Reidy JA, Needham LL. 2008. Concentration of the sunscreen agent, benzophenone-3, in residents of the United States: National Health and Nutrition Examination Survey 2003-2004. Environ Health Perspect 116(7): 893-897.

Cantrell A, McGarvey D, Mulroy L, Truscott T. 1999. Laser flash photolysis studies of the UVA sunscreen Mexoryl SX. Photochem Photobiol 70: 292-97.

CDC (Centers for Disease Control). 2011. Vitamin D Status: United States, 2001-2006. NCHS Data Brief. No. 59. March 2011. http://www.cdc.gov/nchs/data/databriefs/db59.pdf

Chatelain E, Gabard B. 2001. Photostabilization of butyl methoxydibenzoylmethane (Avobenzone) and ethylhexyl methoxycinnamate by bis-ethylhexyloxyphenol methoxyphenyl triazine (Tinosorb S), a new UV broadband filter. Photochemistry and Photobiology 74(3): 401-06.

Ciba Specialty Chemicals Corporation. 2005. Time and Extent Application for Bisoctrizole. Prepared to support the Inclusion of Bisoctrizole into FDA’s Monograph for Sunscreen Drug Products for Over-the-Counter Human Use; (64 FR 27666-27693, as amended by 66 FR 6748567487, Docket No. 78N-0038). April 11 2005.

Ciba Specialty Chemicals Corporation. 2005. Time and Extent Application for Bemotrizinol. Prepared to support the Inclusion of Bemotrizinol into FDA’s Monograph for Sunscreen Drug Products for Over-the-Counter Human Use; (64 FR 27666-27693, as amended by 66 FR 6748567487, Docket No. 78N-0038). April 11 2005

CIE (Commission Internationale de l´Eclairage). 1998. Erythema Reference Action Spectrum and Standard Erythema Dose. Joint ISO/CIE Standard. ISO 17166:1999/CIE S 007-1998. Available: http://www.cie.co.at/index.php/Publications/index.php?i_ca_id=469

CIR. 2006. 2006 CIR Compendium. Washington: Cosmetic Ingredient Review.

CIR (Cosmetic Ingredient Review). 2009. CIR Compendium Containing Abstracts, Discussions, and Conclusions of CIR Cosmetic Ingredient Safety Assessments. Available: www.cir-safety.org

Coleho SG, Hearing VJ. 2010. UVA tanning is involved in the increased incidence of skin cancers in fair-skinned young women. Pigment Cell & Melanoma Research. 23(1): 57-63.

Colipa. 2009. Guidelines: Method for in-vitro determination of UVA protection. Colipa – The European Cosmetics Association. Prepared by the COLIPA In vitro UV Protection Method Task Force. June 2009.

Consumers Union. 2007. Sunscreens: Some are short on protection. Consumer Reports 72(7): 6.

Cosmetics Europe. 2011. Guidelines: Method for in vitro determination of UVA protection. Available: http://www.cosmeticseurope.eu/downloads/3306.html [accessed April 24 2012].

Cross SE, Innes B, Roberts MS, Tsuzuki T, Robertson TA, McCormick P. 2007. Human Skin Penetration of Sunscreen Nanoparticles: In-vitro Assessment of a Novel Micronized Zinc Oxide Formulation. Skin Pharmacol Physiol 20(3): 148-154.

CTFA (Cosmetic, Toiletry, and Fragrance Association). 2006. Comments of the Cosmetic, Toiletry, and Fragrance Association Regarding the Scientific and Legal Issues Associated With Nanotechnology in Personal Care Products. Comments. Washington, DC: Cosmetic, Toiletry, and Fragrance Association (CTFA).

CTFA/NDMA (Cosmetic, Toiletry and Fragrance Association and Nonprescription Drug Manufacturers Association). 1996. CTFA/NDMA Taskforce Report on Critical Wavelength Determination for the Evaluation of of the UVA Efficacy of Sunscreen Products: Cosmetics, Toiletry, and Fragrance Association.

Damiani E, Baschong W, Greci L. 2007. UV-Filter combinations under UV-A exposure: Concomitant quantification of over-all spectral stability and molecular integrity. J Photochem Photobiol B 87(2): 95-104.

Damiani E, Astolfi P, Giesinger J, Ehlis T, Herzog B, Greci L, et al. 2010. Assessment of the photo-degradation of UV-filters and radical-induced peroxidation in cosmetic sunscreen formulations. Free Radical Research 44(3): 304-12.

Deflandre A, Lang G. 1988. Photostability assessment of sunscreens: benzylidene camphor and dibenzoylmethane derivatives. Int J Cosmet Sci 10: 53-62.

Dennis LK, Beane Freeman LE, VanBeek MJ. 2003. Sunscreen use and the risk for melanoma: a quantitative review. Ann Intern Med 139(12): 966-78.

Dennis LK, Vanbeek MJ, Beane Freeman LE, Smith BJ, Dawson DV, Coughlin JA. 2008. Sunburns and risk of cutaneous melanoma: does age matter? A comprehensive meta-analysis. Ann Epidemiol 18(8): 614-27.

Diffey BL. 1994. A method for broad spectrum classification of sunscreens. International Journal of Cosmetic Science. 16:47-52.

Diffey BL. 2001. When should sunscreen be reapplied? J Am Acad Dermatol 45(6): 882-885.

Diffey BL. 2009a. Sunscreens as a preventative measure in melanoma: an evidence-based approach or the precautionary principle? Br J Dermatol 161 Suppl 3: 25-7.

Diffey BL. 2009b. Spectral uniformity: a new index of broad spectrum (UVA) protection. International Journal of Cosmetic Science 31(1): 63-68.

Diffey BL. 2012. The FDA final rule on labeling and effectiveness testing of sunscreens: Too little, too late? Letter to Editor. J Am Acad Dermatol. 66(1): 162-3.

Donawho C, Wolf P. 1996. Sunburn, sunscreen, and melanoma. Curr Opin Oncol 8(2): 159-66.

Dondi D, Albini A, Serpone N. 2006. Interactions between different solar UVB/UVA filters contained in commercial suncreams and consequent loss of UV protection. Photochem Photobiol Sci 5(9): 835-843.

Dow 2011. ZinClear IM Zinc Oxide Dispersions. Available: http://www.dow.com/personalcare/technologies/uvtechnologies/zinclear.htm[accessed May 16 2011].

Draelos ZD. 2010. Are sunscreens safe? Journal of Cosmetic Dermatology 9: 1-2.

Dubin N, Moseson M, Pasternack BS. 1986. Epidemiology of malignant melanoma: pigmentary traits, ultraviolet radiation, and the identification of high-risk populations. Recent Results Cancer Res 102: 56-75.

Dunford R, Salinaro A, Cai L, Serpone N, Horikoshi S, Hidaka H, et al. 1997. Chemical oxidation and DNA damage catalysed by inorganic sunscreen ingredients. FEBS Lett 418(1-2): 87-90.

Dupuy A, Dunant A, Grob JJ. 2005. Randomized controlled trial testing the impact of high-protection sunscreens on sun-exposure behavior. Arch Dermatol 141(8): 950-6.

Durrer, S, Ehnes, C, Fuetsch, M, Maerkel, K, Schlumpf, M, Lichtensteiger, W. 2007. Estrogen sensitivity of target genes and expression of nuclear receptor co-regulators in rat prostate after pre- and postnatal exposure to the ultraviolet filter 4-methylbenzylidene camphor. Environ Health Perspect. 115 Suppl 1, 42-50.

Espinosa Arranz J, Sanchez Hernandez JJ, Bravo Fernandez P, Gonzalez-Baron M, Zamora Aunon P, Espinosa Arranz E, et al. 1999. Cutaneous malignant melanoma and sun exposure in Spain. Melanoma Res 9(2): 199-205.

European Commission. 2006. Recommendation on the efficacy of sunscreen products and the claims made relating thereto, OJ L265, 2006 ⁄7647 ⁄EC, 39–43.

EWG (Environmental Working Group). 2009. Nanotechnology & Sunscreens: EWG’s 2009 Sunscreen Investigation. http://www.ewg.org/nanotechnology-sunscreens

EWG (Environmental Working Group). 2010. U.S. Sunscreens Get Flunking Grade for UVA Protection. Environmental Working Group, Washington DC. http://www.ewg.org/Sunscreens-Get-Flunking-Grade-for-UVA-Protection

EWG (Environmental Working Group). 2010. Unpublished test results.

EWG. 2012. EWG’s Skin Deep Cosmetics Safety Database. Available: http://www.ewg.org/skindeep/ [accessed April 16, 2012].

Faass O, Schlumpf M, Reolon S, Henseler M, Maerkel K, Durrer S. 2009., Female sexual behavior, estrous cycle and gene expression in sexually dimorphic brain regions after pre- and postnatal exposure to endocrine active UV filters. Neurotoxicology 30(2): 249-60.

FDA (U.S. Food and Drug Administration). 2006. Center for Drug Evaluation and Research Application Number 21-502: Medical Review, Center for Drug Evaluation and Research, Food and Drug Administration. In 2006; pp July 11, 2006.

FDA (U.S. Food and Drug Administration). 2007. Sunscreen Drug Products for Over-the-Counter Human Use; Proposed Amendment of Final Monograph; Proposed Rule. In: 21 CFR Parts 347 and 352. Federal Register: U. S. Food and Drug Administration. Available at http://www.fda.gov/OHRMS/DOCKETS/98fr/07-4131.htm.

FDA (U.S. Food and Drug Administration). 2009. About the National Center for Toxicological Research. Biochemical Toxicology. Available: http://www.fda.gov/AboutFDA/CentersOffices/NCTR/WhatWeDo/ResearchDivisions/ucm078482.htm

FDA (Food and Drug Administration). 2011a. Sunscreen Drug Products for Over-the-Counter Human Use, 76 Fed. Reg. 35,672 (June 17, 2011).

FDA (Food and Drug Administration). 2011b. Draft — Not for Implementation: Guidance for Industry. Enforcement Policy – OTC Sunscreen Drug Products Marketed Without an Approved Application. http://www.fda.gov/downloads/Drugs/GuidanceComplianceRegulatoryInformation/Guidances/UCM259001.pdf

FDA (U.S. Food and Drug Administration). 2011c. Retinyl Palmitate Press Statement. January 27, 2011. Provided to EWG on May 10, 2011 by FDA Spokesperson Shelly Burgess.

FDA (U.S. Food and Drug Administration). 2012. Labeling and Effectiveness Testing; Sunscreen Drug Products for Over-the-Counter Human Use; Delay of Compliance Dates. 21 CFR Parts 201 and 310, [Docket No. FDA-1978-N-0018] (formerly Docket No. 1978N-0038), RIN 0910-AF43. Department of Health and Human Services, 4160-01-P.

FDA (Food and Drug Administration). 2011d. Sunscreen Drug Products for Over-the-Counter Human Use; Request for Data and Information Regarding Dosage Forms. RIN 0910-ZA40, [Docket No FDA-1978-N-0018], 21 CFR Part 352, 4160-01-P.

FDA (Food and Drug Administration). 2011e. Revised Effectiveness Determination; Sunscreen Drug Products for Over-the-Counter Human Use. RIN 0910-AF43, [Docket No FDA-1978-N-0018], 21 CFR Part 201, 4160-01-P.

Felix T, Hall B. J, Brodbelt JS. 1998. Determination of benzophenone-3 and metabolites in water and human urine by solid-phase microextraction and quadrupole ion trap GC-MS. Analytica Chimica Acta, 371(2-3): 195-203.

Ferrero L, Pissavini M, Marguerie S, Zastrow L. 2003. Efficiency of a continuous height distribution model of sunscreen film geometry to predict a realistic sun protection factor. J. Cosmet. Sci. 54; 463 – 481.

Fielding JE, Teutsch SM. 2010. Skin Cancer Prevention: Sunnyside Up or Scrambled? Editorial. J Natl Cancer Inst: 102(7): 445-7. http://jnci.oxfordjournals.org/content/102/7/445.full.pdf+html

FOE (Friends of the Earth). 2009. Nanotechnology and Sunscreens: A Consumer Guide for Avoiding Nano-Sunscreens. http://www.foe.org/healthy-people/nanotechnology-and-sunscreens, last updated 3/20/09.

Fourtanier A, Moyal D, Seite S. 2008. Sunscreens containing the broad-spectrum UVA absorber, Mexoryl SX, prevent the cutaneous detrimental effects of UV exposure: a review of clinical study results. Photodermatol Photoimmunol Photomed 24(4): 164-74.

Gamer AO, Leibold E, van Ravenzwaay B. 2006. The in vitro absorption of microfine zinc oxide and titanium dioxide through porcine skin. Toxicol In Vitro 20(3): 301-7.

Garland CF, Garland FC, Gorham ED. 2003. Epidemiologic evidence for different roles of ultraviolet A and B radiation in melanoma mortality rates. Ann Epidemiol 13(6): 395-404.

Gasparro F. 1997. Sunscreen Photobiology: Molecular, Cellular, and Physiological Aspects. New York: Springer.

Geller AC, Colditz G, Oliveria S, Emmons K, Jorgensen C, Aweh GN, et al. 2002. Use of sunscreen, sunburning rates, and tanning bed use among more than 10 000 US children and adolescents. Pediatrics 109(6): 1009-14.

Gimotty PA & Glanz K. Sunscreen and melanoma: What is the evidence? J Clin Oncol. 29(3): 249-250.

Ginde AA, Mansbach JM, Camargo CA, Jr. 2009. Association between serum 25-hydroxyvitamin D level and upper respiratory tract infection in the Third National Health and Nutrition Examination Survey. Arch Intern Med 169(4): 384-90.

Gloster HM, Jr, Brodland DG. 1996. The epidemiology of skin cancer. Dermatol Surg 22(3): 217-26.

Godar DE, Landry RJ, Lucas AD. 2009. Increased UVA exposures and decreased cutaneous Vitamin D(3) levels may be responsible for the increasing incidence of melanoma. Med Hypotheses 72(4): 434-43.

Gomez E, Pillon A, Fenet H, Rosain D, Duchesne MJ, Nicolas JC, Balaguer P, Casellas C. 2005. Estrogenic activity of cosmetic components in reporter cell lines: Parabens, UV screens, and musks. Journal of Toxicology and Environmental Health-Part a-Current Issues 68(4): 239-251.

Gonzalez HG, Farbrot A, Larko O. 2002. Percutaneous absorption of benzophenone-3, a common component of topical sunscreens. Clinical and Experimental Dermatology 27(8): 691-94.

Gonzalez H, Farbrot A, Larko O, Wennberg AM. 2006. Percutaneous absorption of the sunscreen benzophenone-3 after repeated whole-body applications, with and without ultraviolet irradiation. Br J Dermatol. 154(2): 337-40.

Gonzalez-Perez R, Trebol I, Garcia-Rio I, Arregui MA, Soloeta R. 2007. Allergic contact dermatitis from methylene-bis-benzotriazolyl tetramethylbutylphenol (Tinosorb M). Contact Dermatitis 56(2): 121.

Gordon LG, Scuffham PA, van der Pols JC, McBride P, Williams GM, Green AC. 2009. Regular sunscreen use is a cost-effective approach to skin cancer prevention in subtropical settings. J Invest Dermatol 129(12): 2766-71.

Gorham ED, Mohr SB, Garland CF, Chaplin G, Garland FC. 2007. Do sunscreens increase risk of melanoma in populations residing at higher latitudes? Ann Epidemiol 17(12): 956-63.

Grant WB, Mohr SB. 2009. Ecological studies of ultraviolet B, vitamin D and cancer since 2000. Ann Epidemiol 19(7): 446-54.

Green A, Williams G, Neale R, Hart V, Leslie D, Parsons P, et al. 1999 Daily sunscreen application and betacarotene supplementation in prevention of basal-cell and squamous-cell carcinomas of the skin: a randomised controlled trial Lancet 354(9180): 723-9.

Green AC, Williams GM, Logan V, Strutton GM. 2011. Reduced melanoma after regular sunscreen use: randomized trial follow-up. J Clin Oncol. 2011 Jan 20;29(3):257-63.

Green AC, Williams GM. 2011b. Correspondence. Reply to M.A. Goldenhersh et al. Clinical Oncology. 29(18)

Greelee RT, Hill-Harmon MB, Murray T, Thun M. 2001. Cancer statistics, 2001. CA Cancer J Clin 51: 15–36.

Gulson B, Wong H, Korsch M, Gomez L, et al. 2012. Comparison of dermal absorption of zinc from different sunscreenformulations and differing UV exposure based on stable isotope tracing. 420:313-18. http://dx.doi.org/10.1016/j.scitotenv.2011.12.046

Gulston M, Knowland J. 1999. Illumination of human keratinocytes in the presence of the sunscreen ingredient Padimate-O and through an SPF-15 sunscreen reduces direct photodamage to DNA but increases strand breaks. Mutation Research-Genetic Toxicology and Environmental Mutagenesis 444(1): 49-60.

Hanson KM, Gratton E, Bardeen CJ. 2006. Sunscreen enhancement of UV-induced reactive oxygen species in the skin. Free Radic Biol Med 41(8): 1205-12.

Hayden C, Roberts M, Benson H. 1997. Systemic absorption of sunscreen after topical application. Lancet 350(Sep): 863-64.

Hayden CGJ, Cross SE, Anderson C, Saunders NA, Roberts MS. 2005. Sunscreen penetration of human skin and related keratinocyte toxicity after topical application. Skin Pharmacology and Physiology 18(4): 170-174.

Haywood R, Wardman P, Sanders R, Linge C. 2003. Sunscreens inadequately protect against ultraviolet-A-induced free radicals in skin: implications for skin aging and melanoma? J Invest Dermatol 121(4): 862-8.

Haywood R, Volkov A, Andrady C, Sayer R. 2012. Measuring sunscreen protection against solar-simulated radiation-induced structural radical damage to skin using ESR/spin trapping: Development of an ex vivo test method. Free Radical Research. 46(3):265-275. doi:10.3109/10715762.2011.651719

Herzog B, Mongiat S, Dehayes C, Neuhaus M, Sommer K, Mantler A. 2002. In vivo and in vitro assessment of UVA protection by sunscreen formulations containing either butyl methoxy dibenzoyl methane, methylene bis-benzotriazoyl tetramethybutylphenol, or microfine ZnO. Int J Cosmet Sci 24: 170-85.

Herzog B. 2002. Prediction of sun protection factors by calculation of transmissions with a calibrated step film model. Journal of Cosmetic Science 53(1): 11-26.

Herzog B, Hueglin D, Osterwalder U. 2005. New Sunscreen Actives. In: Sunscreens: Regulations and Commercial Development, 3rd edition (Shaath NA, ed). Boca Raton, FL: Taylor & Francis.

Herzog B. 2005b. Prediction of Sun Protection Factors and UV-A Parameters. In: Sunscreens: Regulations and Commercial Development (Shaath NA, ed). New York: Taylor and Francis Group, 954.

Herzog B. 2006. Ciba Sunscreen Simulator. Available: http://www.cibasc.com/pccibasunscreensimulator [accessed July 20 2006].

Herzog B, Wehrle M, Quass K. 2009. Photostability of UV Absorber Systems in Sunscreens. Photochem Photobiol 85: 869-78.

Hidaka H, Kobayashi H, Koike T, Sato T, Serpone N. 2006. DNA Damage Photoinduced by Cosmetic Pigments and Sunscreen Agents under Solar Exposure and Artificial UV Illumination. J Oleo Sci 55(5): 249-61.

Holly EA, Aston DA, Cress RD, Ahn DK, Kristiansen JJ. 1995. Cutaneous melanoma in women. I. Exposure to sunlight, ability to tan, and other risk factors related to ultraviolet light. Am J Epidemiol 141(10): 923-33.

Huncharek M, Kupelnick B. 2002. Use of topical sunscreens and the risk of malignant melanoma: a meta-analysis of 9067 patients from 11 case-control studies. American Journal of Public Health 92(7): 1173-7.

Hunter DJ, Colditz GA, Stampfer MJ, Rosner B, Willett WC, Speizer FE. 1990. Risk factors for basal cell carcinoma in a prospective cohort of women. Ann Epidemiol 1(1): 13-23.

IARC (International Agency for Research on Cancer). 2001a. IARC Handbooks of Cancer Prevention, Vol 5, Sunscreens. Lyon: IARC Press.

IARC (International Agency for Research on Cancer). 2001b. IARC Summary Recommendations for Public Health Action. Available: www.who.int/uv/resources/recommendations/en/IARCSum.pdf

IARC (International Agency for Research on Cancer). 2006a. Exposure to Artificial UV Radiation and Skin Cancer, Vol 1, Lyon: IARC Press.

IARC (International Agency for Research on Cancer). 2006b. Monograph No. 2 Titanium Dioxide (Group 2B): International Agency for Research on Cancer. Available: http://monographs.iarc.fr/ENG/Meetings/93-titaniumdioxide.pdf.

IARC (International Agency for Research on Cancer). 2009. Press Release. Sunbeds and UV Radiation 29/07/2009. Available: http://www.iarc.fr/en/media-centre/iarcnews/2009/sunbeds_uvradiation.php

Inbaraj J, Bilski P, Chignell C. 2002. Photophysical and photochemical studies of 2-phenylbenzimadazole and UVB sunscreen 2-phenylbenzimidazole-5-sulfonic acid. Photochem Photobiol 75(2): 107-16.

IOM (Institute of Medicine). 2010. Dietary Reference Intakes for Vitamin D and Calcium. Available: http://www.iom.edu/Activities/Nutrition/DRIVitDCalcium.aspx

Janjua NR, Mogensen B, Andersson, AM, Petersen JH, Henriksen M, Skakkebaek NE, Wulf HC. 2004. Systemic absorption of the sunscreens benzophenone-3, octyl-methoxycinnamate, and 3-(4-methyl-benzylidene) camphor after whole-body topical application and reproductive hormone levels in humans. Journal of Investigative Dermatology 123(1): 57-61.

Janjua NR, Kongshoj B, Andersson AM, Wulf HC. 2008. Sunscreens in human plasma and urine after repeated whole-body topical application. J Eur Acad Dermatol Venereol 22(4): 456-61.

Jemal A, Thun MJ, Ries LA, Howe HL, Weir HK, Center MM, et al. 2008. Annual report to the nation on the status of cancer, 1975-2005, featuring trends in lung cancer, tobacco use, and tobacco control. J Natl Cancer Inst 100(23): 1672-94.

Jiang R, Roberts MS, Collins DM, Benson HAE. 1999. Absorption of sunscreens across human skin: an evaluation of commercial products for children and adults. British Journal of Clinical Pharmacology 48(4): 635-37.

Klammer H, Schlecht C, Wuttke W, Schmutzler C, Gotthardt I, Kohrle J, Jarry H. 2007. Effects of a 5-day treatment with the UV-filter octyl-methoxycinnamate (OMC) on the function of the hypothalamo-pituitary-thyroid function in rats. Toxicology 238(2-3): 192-9.

Klein K, Palefsky I. 2005. Formulating Sunscreen Products. In: Sunscreens: Regulations and Commercial Development, 3rd edition (Shaath NA, ed). Boca Raton, FL: Taylor & Francis.

Klinubol P, Asawanonda P, Wanichwecharungruang SP. 2008. Transdermal penetration of UV filters. Skin Pharmacol Physiol. 21(1): 23-9.

Knowland J, McKenzie EA, McHugh PJ, Cridland NA. 1993. Sunlight-Induced Mutagenicity of a Common Sunscreen Ingredient. FEBS Letters 324(3): 309-13.

Kobo Products. 2009. Non-Nano TiO2 & Zno: Sunscreen Technologies. http://www.koboproductsinc.com/Downloads/Kobo-Non-NanoTIO2-ZNO.pdf

Krishnan R, Carr A, Blair E, Nordlund T. 2004. Optical spectroscopy of hydrophobic sunscreen molecules absorbed to dielectric nanospheres. Photochemistry and Photobiology 79(6): 531-39.

Kunisue T, Chen Z, Buck Louis G, Sundaram R, Hediger M, Sun L, Kannan K. 2012. Urinary Concentrations of Benzophenone-type UV Filters in US Women and Their Association with Endometriosis. Environmental Science and Technology. Publication Date (Web): 14 Mar 2012. DOI: 10.1021/es204415a

Kurul E, Hekimoglu S. 2001. Skin permeation of two different benzophenone derivatives from various vehicles. Int J Cosmet Sci 23(4): 211-8.

Lautenschlager S, Wulf HC, Pittelkow MR. 2007. Photoprotection. Lancet 370(9586): 528-37.

Lazovitch D, Vogel RI, Berwick M, et al. 2011. Melanoma Risk in Relation to Use of Sunscreen or Other Sun Protection Methods. Cancer Epidemiology, Biomarkers and Prevention. 20:2583-93. doi:10.1158/1055-9965.EPI-11-0705

Leiter U, Garbe C. 2008. Epidemiology of melanoma and nonmelanoma skin cancer–the role of sunlight. Adv Exp Med Biol 624: 89-103.

Lewicka ZA, Benedetto AF, Beniot DN, YU WW, Fortner JD, Colivn VL. 2011. The structure, composition, and dimensions of TiO2and ZnO nanomaterials in commercial sunscreens. J Nanopart Res 13:3607–3617.

Linos E, Keiser E, Fu T, Colditz G, Chen S, Tang JY. 2011. Hat, shade, long sleeves, or sunscreen? Rethinking US sun protection messages based on their relative effectiveness. Cancer Causes Control 22:1067–1071.

Loeppky RN, Hastings R, Sandbothe J, Heller D, Bao Y, Nagel D. 1991. Nitrosation of tertiary aromatic amines related to sunscreen ingredients. IARC scientific publications (105): 244-252.

Lu N, Zhu Z, Zhao X, Tao R, Yang X, Gao Z. 2008. Nano titanium dioxide photocatalytic protein tyrosine nitration: A potential hazard of TiO(2) on skin. Biochem Biophys Res Commun 370: 698–703.

Lucas RM, McMichael AJ, Armstrong BK, Smith WT. 2008. Estimating the global disease burden due to ultraviolet radiation exposure. Int J Epidemiol 37(3): 654-67.

Lucas RM, Repacholi MH, McMichael AJ. 2006. Is the current public health message on UV exposure correct? Bull World Health Organ 84(6): 485-91.

Looker AC, Pfeiffer CM, Lacher DA, Schleicher RL, Picciano MF, Yetley EA. 2008. Serum 25-hydroxyvitamin D status of the US population: 1988-1994 compared with 2000-2004. Am J Clin Nutr 88(6): 1519-27.

Lund LP, Timmins GS. 2007. Melanoma, long wavelength ultraviolet and sunscreens: controversies and potential resolutions. Pharmacol Ther 114(2): 198-207.

Ma RS, Cotton B, Lichtensteiger, Schlumpf M. 2003. UV filters with antagonistic action at androgen receptors in the MDA-kb2 cell transcriptional-activation assay. Toxicological Sciences 74(1): 43-50.

Maceachern WN, Jillson OF. 1964. A Practical Sunscreen–”Red Vet Pet”. Arch Dermatol 89: 147-50.

Maerkel K, Durrer S, Henseler M, Schlumpf M, Lichtensteiger W. 2007. Sexually dimorphic gene regulation in brain as a target for endocrine disrupters: developmental exposure of rats to 4-methylbenzylidene camphor. Toxicol Appl Pharmacol. 218(2): 152-65.

Marrot L, Belaidi J, Meunier J. 2005. Importance of UVA photoprotection as shown by genotoxic related endpoints: DNA damage and p53 status. Mutation Research 571: 175-184.

Mavon A, Miquel C, Lejeune O, Payre B, Moretto P. 2007. In vitro percutaneous absorption and in vivo stratum corneum distribution of an organic and a mineral sunscreen. Skin Pharmacol Physiol 20(1): 10-20.

McHugh P J, Knowland J. 1997. Characterization of DNA damage inflicted by free radicals from a mutagenic sunscreen ingredient and its location using an in vitro genetic reversion assay. Photochemistry and Photobiology 66(2): 276-281.

McKinlay A, Diffey B. 1987. A reference action spectrum for ultraviolet-induced erythema in human skin. CIE Journal (6): 17-22.

Molina-Molina JM, Escande A, Pillon A, Gomez E, Pakdel F, et al. 2008. Profiling of benzophenone derivatives using fish and human estrogen receptor-specific in vitro bioassays. Toxicology and Applied Pharmacology 232(3): 384-395.

Montenegro L, Carbone C, Paolino D, Drago R, Stancampiano AH, Puglisi G. 2008. In vitro skin permeation of sunscreen agents from O/W emulsions. Int J Cosmet Sci 30(1): 57-65.

NanoDerm, Butz T, Reinert T, Pinheiro T, Moretto P, Pallon J, et al. 2007. Quality of Skin as a Barrier to ultra-fine Particles, Final Report QLK4-CT-2002-02678. Available: http://www.uni-leipzig.de/~nanoderm/Downloads/Nanoderm_Final_Report.pdf

Nash JF. 2009. Memo to FDA: 2009 Market Analysis – Study Report – Report. . Proctor & Gamble. September 4, 2009. Available at: http://www.regulations.gov/#!documentDetail;D=FDA-1978-N-0018-0690 Last viewed: April 25, 2012.

Naylor MF, Boyd A, Smith DW, Cameron GS, Hubbard D, Neldner KH. 1995. High sun protection factor sunscreens in the suppression of actinic neoplasia. Arch Dermatol 131(2): 170-5.

NCI (National Cancer Institute). 2007. General Information about Skin Cancer. www.cancer.gov/cancertopics/pdq/treatment/skin/patient

NCI (National Cancer Institute). 2011. Skin Cancer Prevention. Last modified Oct 7, 2011. http://www.cancer.gov/cancertopics/pdq/prevention/skin/Patient/page3.

NIH (National Institutes of Health) Office of Dietary Supplements. 2012. Lazovitch Fact Sheet: Vitamin D. http://ods.od.nih.gov/factsheets/vitamind-HealthProfessional/ Last viewed April 10, 2012.

Nohynek GJ, Lademann J, Ribaud C, Roberts MS. 2007. Grey goo on the skin? Nanotechnology, cosmetic and sunscreen safety. Crit Rev Toxicol 37(3): 251-277.

Norval M, Wulf HC. 2009. Does chronic sunscreen use reduce vitamin D production to insufficient levels? Br J Dermatol 161(4): 732-6.

NTP (National Toxicology Program). 1992. NTP Technical Report on Toxicity Studies of 2-Hydroxy-4-methoxybenzophenone (CAS Number: 131-57-7) Administered Topically and in Dosed Feed to F344/N Rats and B6C3F1 Mice; National Toxicology Program: 1992.

NTP (National Toxicology Program). 2000. All-Trans-Retinyl Palmitate [CASRN 79-81-2]. Nomination for National Toxicology Program testing. Available: http://ntp.niehs.nih.gov/ntp/htdocs/Chem_Background/ExSumPdf/RetinylPalmitate.pdf

NTP (National Toxicology Program). 2009. Pathology Tables, Survival and Growth Curves from NTP Long-Term Studies. TR-568 All-trans-retinyl palmitate. National Toxicology Program. Available: http://ntp.niehs.nih.gov/index.cfm?objectid=555571BB-F1F6-975E-76F2BC5E369EB6F7.

NTP (National Toxicology Program). 2010. Draft Technical Report on the Photococarcinogenesis Study of Retinoic Acid and Retinyl Palmitate [CAS Nos. 302-79-4 (All-Trans-Retinoic Acid) and 79-81-2 (All-Trans-Retinyl Palmitate)] in SKH-1 Mice (Simulated Solar Light And Topical Application Study). Scheduled Peer Review Date: January 26, 2011. NTP TR 568. NIH Publication No. 11-5910. Available: http://ntp.niehs.nih.gov/index.cfm?objectid=A73F2BD6-F1F6-975E-789930D86CD3C2E1.

NTP (National Toxicology Program). 2011. Findings of NTP Board of Scientific Counselors on Retinoic Acid and Retinyl Palmitate – TR 568. Meeting, January 26, 2011. Research Triangle, North Carolina. http://ntp.niehs.nih.gov/?objectid=BD2CA47D-F1F6-975E-74AA99197B7CB205

Odio M R, Azrimeehan S, Robison SH, Kraus AL. 1994. Evaluation of Subchronic (13 Week), Reproductive, and in-Vitro Genetic Toxicity Potential of 2-Ethylhexyl-2-Cyano-3,3-Diphenyl Acrylate (Octocrylene). Fundamental and Applied Toxicology 22(3): 355-368.

O’Neill JJ. 1984. Effect of Film Irregularities on Sunscreen Efficacy. Journal of Pharmaceutical Sciences 73(7): 888-91.

Osterlind A. 1992. Epidemiology on malignant melanoma in Europe. Acta Oncol 31(8): 903-8.

Osterwalder U. 2009a. Understanding sunscreens: The proposed US Food and Drug Administration rule on ultraviolet A light assessment and labeling will drive US sunscreen towards the ideal ultraviolet B/ultraviolet A light protection profile. J Am Acad Dermatol 60(3, Suppl 1): AB152.

Osterwalder U, Herzog B. 2009b. Sun protection factors: world wide confusion. Br J Dermatol 161 Suppl 3: 13-24.

Osterwalder U, Herzog B. 2010. The long way towards the ideal sunscreen—where we stand and what still needs to be done. Photochem Photobiol Sci 9: 470-81.

Ou-Yang H, Stanfield J, Cole C, Appa Y, Rigel D. 2012. High-SPF sunscreens (SPF >=70) may provide ultraviolate protection above minimal recommended levels by adequately compensating for lower sunscreen user application amounts. J Am Acad Dermatol. Epub ahead of print. March 29, 2012. doi:10.1016/j.jaad.2012.02.029

Pandeya N, Purdie DM, Green A, Williams G. 2005. Repeated occurrence of basal cell carcinoma of the skin and multifailure survival analysis: follow-up data from the Nambour Skin Cancer Prevention Trial. Am J Epidemiol 161(8): 748-54.

Papandreou D, Malindretos P, Karabouta Z, Rousso I. 2010. Possible Health Implications and Low Vitamin D Status during Childhood and Adolescence: An Updated Mini Review. Int J Endocrinol. Article ID 472173. Doi:10.1155/2010/472173

Park E. J, Yoon J, Choi K, Yi J, Park, K. 2009. Induction of chronic inflammation in mice treated with titanium dioxide nanoparticles by intratracheal instillation. Toxicology 260(1-3): 37-46.

Pont AR, Charron AR, Wilson RM, Brand RM. 2003. Effects of active sunscreen ingredient combinations on the topical penetration of the herbicide 2,4-dichlorophenoxyacetic acid. Toxicol Ind Health 19(1): 1-8.

Popov AP, Haag S, Meinke M, Lademann J, Priezzhev AV, Myllyla R. 2009. Effect of size of TiO(2) nanoparticles applied onto glass slide and porcine skin on generation of free radicals under ultraviolet irradiation. J Biomed Opt 14(2): 021011.

Rachon D, Rimoldi G, Wuttke W. 2006. In vitro effects of benzophenone-2 and octyl-methoxycinnamate on the production of interferon-gamma and interleukin-10 by murine splenocytes. Immunopharmacol Immunotoxicol 28(3): 501-10.

Rainey C. 2009. “Animals can get sunburned, too.” McClatchy Newspapers. July 5, 2009. http://www.dallasnews.com/sharedcontent/dws/fea/lifetravel/stories/DN-petsunburn_0705gd.ART.State.Edition1.4c024fd.html

Reichrath J. 2009. Skin cancer prevention and UV-protection: How to avoid vitamin D-deficiency? Br J Dermatol 161 Suppl 3: 54-60.

Rodenas JM, Delgado-Rodriguez M, Herranz MT, Tercedor J, Serrano S. 1996. Sun exposure, pigmentary traits, and risk of cutaneous malignant melanoma: a case-control study in a Mediterranean population. Cancer Causes Control 7(2): 275-83.

Rodriguez E, Valbuena MC, Rey M, Porras de Quintana L. 2006. Causal agents of photoallergic contact dermatitis diagnosed in the national institute of dermatology of Colombia. Photodermatol Photoimmunol Photomed 22(4): 189-92.

Roscher N, Lindemann M, Kong S, Cho C, Jiang P. 1994. Photodecomposition of several compounds commonly used as sunscreen agents. J Photochem Photobiol A 80: 417-21.

Rosenstein BS, Phelps RG, Weinstock MA, Bernstein JL, Gordon ML, Rudikoff D, et al. 1999. p53 mutations in basal cell carcinomas arising in routine users of sunscreens. Photochem Photobiol 70(5): 798-806.

Rubin AI, Chen EH, Ratner D. 2005. Basal-cell carcinoma. N Engl J Med 353(21): 2262-9.

Runger TM. 1999. Role of UVA in the pathogenesis of melanoma and non-melanoma skin cancer. A short review. Photodermatol Photoimmunol Photomed 15(6): 212-6.

Sadrieh N, Wokovich AM, Gopee NV, Zheng J, Haines D, Parmiter D, et al. 2010. Lack of Significant Dermal Penetration of Titanium Dioxide (TiO2) from Sunscreen Formulations containing Nano- and Sub-Micron-Size TiO2 Particles. Toxicol Sci.

Sánchez C, Cuesta J. 2005. Materias Primas de Perfumería y de Cosmética. Filtros solares. Available: http://www.abacovital.com/fichastecnicas/filtros/filtros.htm [accessed June 20 2006].

Sarveiya V, Risk S, Benson HAE. 2004. Liquid chromatographic assay for common sunscreen agents: application to in vivo assessment of skin penetration and systemic absorption in human volunteers. Journal of Chromatography B-Analytical Technologies in the Biomedical and Life Sciences. 803(2): 225-231.

Sayes CM, Reed KL, Warheit DB. 2007. Assessing toxicity of fine and nanoparticles: comparing in vitro measurements to in vivo pulmonary toxicity profiles. Toxicol Sci 97(1): 163-80.

Sayre R. 2000. Titanium Dioxide and Zinc Oxide Induce Photooxidation of Unsaturated Lipids. Cosmetics & Toiletries, 115(10): 75-82.

Sayre RM, Dowdy JC, Gerwig AJ, Shields WJ, Lloyd RV. 2005. Unexpected photolysis of the sunscreen octinoxate in the presence of the sunscreen avobenzone. Photochemistry and Photobiology 81(2): 452-456

SCCNFP (Scientific Committee on Cosmetic Products and Non-Food Products Intended for Consumers). 2000. Opinion concerning Titanium Dioxide. Opinion: European Commission – The Silent Committee on Cosmetic Products and Non-Food Products Intended for Consumers.

SCCP (Scientific Committee on Consumer Products). 2005. Statement on: Zinc oxide used in sunscreens. Statement SCCP/0932/05: Scientific Committee on Consumer Products, European Commission on Health & Consumer Protection Directorate-General. Directorate C – Public Health and Risk Assessment, C7 – Risk assessment. Available: http://ec.europa.eu/health/ph_risk/committees/04_sccp/docs/sccp_o_00m.pdf [accessed 2005].

SCCP (Scientific Committee on Consumer Products). 2006. Opinion on Basic Criteria for the In-vitro Assessment of Dermal Absorption of Cosmetic Ingredients, Updated March 2006. Scientific Committee on Consumer Products, European Commission on Health & Consumer Protection.

SCCPNFP (Scientific Committee on Cosmetic Products and Non-Food Products Intended for Consumers). 2006. Opinion concerning Homosalate; European Commission – SCCNFP: 21 March 2007, 2006; p 45.

SCCP (Scientific Committee on Consumer Products). 2007. Opinion on Safety of Nanomaterials in Cosmetic Products SCCP/1147/07. Brussels: European Union Scientific Committee on Consumer Products Available: http://ec.europa.eu/health/ph_risk/committees/04_sccp/docs/sccp_o_123.pdf [accessed 5/8/08].

Schauder S, Ippen H. 1997. Contact and photocontact sensitivity to sunscreens – Review of a 15-year experience and of the literature. . Contact dermatitis 37(5): 221-232.

Schlossman D, Shao Y. 2005. Inorganic Ultraviolet Filters In: Sunscreens: Regulations and Commercial Development (Shaath NA, ed). New York: Taylor and Francis Group, 251-253.

Schlumpf M, Cotton B, Conscience M, Haller V, Steinmann B, Lichtensteiger W. 2001. In vitro and in vivo estrogenicity of UV screens. Environmental Health Perspectives 109(3): 239-44.

Schlumpf M, Jarry H, Wuttke W, Ma R, Lichtensteiger W. 2004a. Estrogenic activity and estrogen receptor beta binding of the UV filter 3-benzylidene camphor. Comparison with 4-methylbenzylidene camphor. Toxicology. 199(2-3): 109-20.

Schlumpf M, Schmid P, Durrer S, Conscience M, Maerkel K, Henseler M, Gruetter M, Herzog I, Reolon S, Ceccatelli R, Faass O, Stutz E, Jarry H, Wuttke W, Lichtensteiger W. 2004b. Endocrine activity and developmental toxicity of cosmetic UV filters–an update. Toxicology 205(1-2): 113-22.

Schlumpf M, Kypke K, Vökt C, Birchler M, Durrer S, Faass O, et al. 2008. Endocrine Active UV Filters: Developmental Toxicity and Exposure Through Breast Milk. Chimia 62: 1-7.

Schreurs R, Lanser P, Seinen W, van der Burg B. 2002, Estrogenic activity of UV filters determined by an in vitro reporter gene assay and an in vivo transgenic zebrafish assay. Archives of Toxicology 76, (5-6): 257-261.

Schreurs R, Sonneveld E, Jansen JHJ, Seinen W, van der Burg B. 2005. Interaction of polycyclic musks and UV filters with the estrogen receptor (ER), androgen receptor (AR), and progesterone receptor (PR) in reporter gene bioassays. Toxicological Sciences. 83(2): 264-272.

Schwack W, Rudolph T. 1995. Photochemistry of dibenzoyl methane UVA filters part I. J Photochem Photobiol B Biol 28: 229-34.

Seidlova-Wuttke D, Christoffel J, Rimoldi G, Jarry H, Wuttke W. 2006. Comparison of effects of estradiol with those of octylmethoxycinnamate and 4-methylbenzylidene camphor on fat tissue, lipids and pituitary hormones. Toxicol Appl Pharmacol, 214(1): 1-7.

Seidlova-Wuttke D, Jarry H, Christoffel J, Rimoldi G, Wuttke W. 2006. Comparison of effects of estradiol (E2) with those of octylmethoxycinnamate (OMC) and 4-methylbenzylidene camphor (4MBC)–2 filters of UV light – on several uterine, vaginal and bone parameters. Toxicol Appl Pharmacol. 210(3): 246-54.

Serpone N, Salinaro A, Emeline AV, Horikoshi S, Hidaka H, Zhao JC. 2002. An in vitro systematic spectroscopic examination of the photostabilities of a random set of commercial sunscreen lotions and their chemical UVB/UVA active agents. Photochemical & Photobiological Sciences 1(12): 970-81.

Serpone N, Salinaro AE, Horikoshi S, Hidaka H. 2006. Beneficial effects of photo-inactive titanium dioxide specimens on plasmid DNA, human cells and yeast cells exposed to UVA/UVB simulated sunlight. Journal of Photochemistry and Photobiology A-Chemistry 179(1-2): 200-12.

Setlow RB, Grist E, Thompson K, Woodhead AD. 1993. Wavelengths effective in induction of malignant melanoma. Proc Natl Acad Sci U S A 90(14): 6666-70.

Shaath N, Fares H, Klein K. 1990. Photodegradation of sunscreen chemicals: solvent considerations. Cosmet Toilet 105: 41-44.

Shaath N. 2007. The Encyclopedia of UV Filters: Allured Publishing.

Shaath NA. 2005. Sunscreen Evolution. In: Sunscreens: Regulation and Commercial Development, 3rd edition (Shaath NA, ed). Boca Raton, FL: Taylor & Francis.

Sharma V, Shukla RK, Saxena N, Parmar D, Das M, Dhawan A. 2009. DNA damaging potential of zinc oxide nanoparticles in human epidermal cells. Toxicol Lett 185(3): 211-218.

Shaw, D. W. 2006. Allergic contact dermatitis from octisalate and cis-3-hexenyl salicylate. Dermatitis 17(3): 152-5.

Shimizu M, Tainaka H, Oba T, Mizuo K, Umezawa M, Takeda K. 2009. Maternal exposure to nanoparticulate titanium dioxide during the prenatal period alters gene expression related to brain development in the mouse. Particle and Fibre Toxicology 6(1): 20.

Soto AM, Sonnenschein C. 2005. Shining a light on sunscreens. Endocrinology 146(5): 2127-9.

Stamatakis P, Palmer B, Salzman G, Bohren C, Allen T. 1990. Optimum particle size of titanium dioxide and zinc oxide for attenuation of ultraviolet radiation. J Coating Technol 62(789): 95.

Stanfield JW. 2005. In Vitro Techniques in Sunscreen Development. In: Sunscreens: Regulations and Comericial Development (Shaath NA, ed). New York: Taylor and Francis, 807 – 25.

Stern RS. 2010. Prevalence of a history of skin cancer in 2007: results of an incidence-based model. Arch Dermatol. 146(3): 279-82.

Takeda K, Suzuki K, Ishihara A, Kubo-Irie M, Fujimoto R, Tabata M, et al. 2009. Nanoparticles transferred from pregnant mice to their offspring can damage the genital and cranial nerve systems. J Health Sci 55(1): 95-102.

Tang JY, Parimi N, Wu A, Boscardin WJ, Shikany JM, Chren MM, et al. 2010. Inverse association between serum 25(OH) vitamin D levels and non-melanoma skin cancer in elderly men. Cancer Causes Control 21(3): 387-91.

Thieden E, Philipsen PA, Sandby-Moller J, Wulf HC. 2005. Sunscreen use related to UV exposure, age, sex, and occupation based on personal dosimeter readings and sun-exposure behavior diaries. Arch Dermatol 141(8): 967-73.

Thompson SC, Jolley D, Marks R. 1993. Reduction of solar keratoses by regular sunscreen use. N Engl J Med 329(16): 1147-51.

Turner P, Team GD, Stambulchik E. 2004. xmGrace Modeling Software.

Vainio H, Miller AB, Bianchini F. 2000. An international evaluation of the cancer-preventive potential of sunscreens. Int J Cancer 88(5): 838-42.

van der Pols JC, Williams GM, Pandeya N, Logan V, Green AC. 2006 Prolonged prevention of squamous cell carcinoma of the skin by regular sunscreen use. Cancer Epidem. Biomark. Prev. 15(12): 2546-8.

Vanquerp V, Rodriguez C, Coiffard C, Coiffard L, De Roeck-Holtzhauer Y. 1999. High-performance liquid chromatographic method for the comparison of the photostability of five sunscreen agents. J Chromatogr A 832: 273-77.

Vidal MT, Chisvert A, Salvador A. 2003. Sensitive sequential-injection system for the determination of 2-phenylbenzimidazole-5-sulphonic acid in human urine samples using on-line solid-phase extraction coupled with fluorimetric detection. Talanta 59(3): 591-599.

von Thaler AK, Kamenisch Y, Berneburg M. 2010. The role of ultraviolet radiation in melanomagenesis. Exp Dermatol 19(2): 81-8.

Wagner C, Howard C, Hulsey T, Lawrence R, Taylor S, Will H. 2010. Circulating 25-Hydroxyvitamin D Levels in Fully Breastfed Infants on Oral Vitamin D Supplementation. Int J Endocrinol: Published online 2009 December 9. doi: 10.1155/2010/235035.

Walters KA, Brain KR, Howes D, James VJ, Kraus AL, Teetsel NM, Toulon M, Watkinson AC, Gettings SD. 1997. Percutaneous penetration of octyl salicylate from representative sunscreen formulations through human skin in vitro. Food Chem Toxicol 35(12): 1219-25.

Wang SQ, Setlow R, Berwick M, Polsky D, Marghoob AA, Kopf AW, et al. 2001. Ultraviolet A and melanoma: a review. J Am Acad Dermatol 44(5): 837-46.

Wang SQ, Osterwalder U, Jung K. 2011. Ex vivo evaluation of radical sun protection factor in popular sunscreens with antioxidants. J Am Acad Dermatol. 65(3):525-30.

Wang T, Kasichayanula S, Xiaochen G. 2006. In vitro permeation of repellent DEET and sunscreen oxybenzone across three artificial membranes. International Journal of Pharmaceutics 310: 110–117.

Wang T, Gu X. 2007. In Vitro Percutaneous Permeation of the Repellent DEET and the Sunscreen Oxybenzone across Human Skin. J Pharm Pharm Sci 10(1): 17-25.

Weir A, Westerhoff P, Fabricius L, Hristovski K, von Goetz N. 2012. Titanium dioxide nanoparticles in food and personal care products. 46(4):2242-50. Epub 2012 Feb 8.

Westerdahl J, Ingvar C, Masback A, Olsson H. 2000. Sunscreen use and malignant melanoma. Int J Cancer 87(1): 145-50.

WHO (World Health Organization). 2006. Solar ultraviolet radiation: Global burden of disease from solar ultraviolet radiation. Environmental Burden of Disease Series, No. 13. Available: http://www.who.int/uv/publications/solaradgbd/en/index.html

Wittgen HG, van Kempen LC. 2007. Reactive oxygen species in melanoma and its therapeutic implications. Melanoma Res 17(6): 400-409.

Wlaschek M, Tantcheva-Poor I, Naderi L, Ma W, Schneider LA, Razi-Wolf Z, Schuller J, Scharffetter-Kochanek K. 2001. Solar UV irradiation and dermal photoaging. J Photochem Photobiol B 63(1-3): 41-51.

Wolf P, Quehenberger F, Mullegger R, Stranz B, Kerl H. 1998. Phenotypic markers, sunlight-related factors and sunscreen use in patients with cutaneous melanoma: an Austrian case-control study. Melanoma Res 8(4): 370-8.

Wolff MS, Teitelbaum SL, Windham G, Pinney SM, Britton JA, Chelimo C, et al. 2007. Pilot study of urinary biomarkers of phytoestrogens, phthalates, and phenols in girls. Environmental Health Perspectives 115(1): 116-121.

Wolff MS, Engel SM, Berkowitz GS, Ye X, Silva MJ, Zhu C, et al. 2008. Prenatal phenol and phthalate exposures and birth outcomes. Environmental health perspectives 116(8): 1092.

Wu J, Liu W, Xue C, Zhou S, Lan F, Bi L, Xu H, Yang X, Zeng FD. 2009. Toxicity and penetration of TiO(2) nanoparticles in hairless mice and porcine skin after subchronic dermal exposure. Toxicol Lett 191(1): 1-8.

Zastrow L, Ferrero L, Herrling T. 2004. Integrated sun protection factor: A new sun protection factor based on free radicals generated by UV irradiation. Skin Pharmacol Physiol 17:219–31.AAD (American Academy of Dermatology). 2002.