- This ingredient’s score is higher if used in products intended for use around the eyes due to increased risk of absorption.
- This ingredient’s score is higher if used in products that are inhalable (e.g., sprays, powders) because of respiratory concerns.
- This ingredient’s score is higher if used in products intended for use around mouth due to increased risk of ingestion and absorption.
- This ingredient’s score is higher if used in products intended for use on lips due to increased risk of ingestion and absorption.
- Products with the EWG VERIFIED mark have met use restrictions and warnings based on EWG review of company data.
IMAGE SOURCE: PubChem
Other ConcernsUse restrictions (high), Persistence and bioaccumulation (moderate), Non-reproductive organ system toxicity (moderate), Ecotoxicology (low), and Occupational hazards (high)
Restricted: EWG VERIFIED products cannot contain this ingredient without adequate substantiation
Zinc Sulfate is an inorganic salt.
See how this product scores for common concerns.
LOWAllergies & Immunotoxicity
LOWDevelopmental and Reproductive Toxicity
- DATA SOURCES
Products with this Ingredient
|nail polish||28 products|
|liquid hand soap||20 products|
|facial moisturizer/treatment||7 products|
|serums & essences||5 products|
|around-eye cream||2 products|
|facial cleanser||2 products|
|hair-loss treatment||2 products|
|hair treatment/serum||2 products|
|daily use with SPF||2 products|
|bar soap||1 products|
|recreational sunscreen||1 products|
|hair styling aide||1 products|
|baby lotion||1 products|
|Violation of government restrictions - Restricted in cosmetics; use, concentration, or manufacturing restrictions - any||Open scientific literature|
|Restricted in cosmetics (recommendations or requirements) - use, concentration, or manufacturing restrictions - any||CosIng|
|Determined safe for use in cosmetics, subject to concentration or use limitations - any||Open scientific literature|
|Allowed workplace exposures restricted to low doses||CPS&Q - Classification & Labelling|
Persistence and bioaccumulation
|Persistent or bioaccumulative and moderate to high toxicity concern in humans||Environment Canada Domestic Substance List|
|Persistent, bioaccumulative in wildlife||Canada PBTs - Accelerated Reduction/Elimination of Toxics (ARET)|
|Not suspected to be bioaccumulative||Environment Canada Domestic Substance List|
Organ system toxicity (non-reproductive)
|Limited evidence of eye toxicity||CPS&Q - Classification & Labelling|
|Classified as expected to be toxic or harmful||Environment Canada Domestic Substance List|
|Classified as toxic or harmful||CPS&Q - Classification & Labelling|
|Limited evidence of any toxicity||Scorecard.org Toxicity Information|
|One or more animal studies show classified as toxic effects at moderate doses (low dose studies may be unavailable for this ingredient)||EPA Toxic Release Inventory PBTs|
|Classified as a low human health priority||Environment Canada Domestic Substance List|
|Limited evidence of developmental toxicity||Scorecard.org Toxicity Information|
|Suspected to be an environmental toxin and be persistent or bioaccumulative||Environment Canada Domestic Substance List|
|Wildlife and environmental toxicity||CPS&Q - Classification & Labelling|
|Suspected to be an environmental toxin||Environment Canada Domestic Substance List|
Multiple, additive exposure sources
|Designated as safe for general or specific, limited use in food||FDA Everything Added to Food|
|Designated as safe for general or specific, limited use in food||FDA Food Additive Status|
|2573 studies in PubMed science library may include information on the toxicity of this chemical||NLM PubMed|
- Open scientific/peer reviewed literature
- European Commission. 2013. Cosing, the European Commission database with information on cosmetic substances and ingredients. Accessed on March 1, 2013 at http://ec.europa.eu/consumers/cosmetics/cosing/ .
- CPS&Q (Consumer Products Safety & Quality) formely known as ECB (European Chemicals Bureau). 2008. Classification and Labelling: Chemicals: Annex VI of Directive 67/548/EEC through the 31st ATP.
- EC (Environment Canada). 2008. Domestic Substances List Categorization. Canadian Environmental Protection Act (CEPA) Environmental Registry.
- EC (Environment Canada). 1994. Accelerated Reduction/Elimination of Toxics (ARET). ARET substance list of persistent, bioaccumulative and toxic chemicals.
- ED (Environmental Defense). 2006. Scorecard _ The Pollution Information Site. http://www.scorecard.org.
- EPA (U.S. Environmental Protection Agency). 1999. Toxics Release Inventory Program. PBT Chemical Rule.
- FDA (U.S. Food and Drug Administration). 2008. EAFUS [Everything Added to Food]: A Food Additive Database. FDA Office of Food Safety and Applied Nutrition.
- FDA (U.S. Food and Drug Administration) 2006. Food Additive Status List. Downloaded from http://www.cfsan.fda.gov/%7Edms/opa-appa.html, Oct 16, 2006.
- NLM (National Library of Medicine). 2012. PubMed online scientific bibliography data. http://www.pubmed.gov.
Cosmetics and personal care products are not required to be tested for safety before being allowed on the market. The Skin Deep® scoring system was designed to help the public understand whether a product is safe to use or whether it contains ingredients of concern.
Every product and ingredient in Skin Deep gets a two-part score – one for hazard and one for data availability. The safest products score well by both measures, with a low hazard rating and a fair or better data availability rating.HOW WE DETERMINE SCORES
The Skin Deep ingredient hazard score, from 1 to 10, reflects known and suspected hazards linked to the ingredients. The EWG VERIFIED™ mark means a product meets EWG’s strictest criteria for transparency and health.
The Skin Deep data availability rating reflects the number of scientific studies about the product or ingredient in the published scientific literature.