EWG Skin Deep® | Peter Thomas Roth Niacinamide Discoloration Treatment Rating

HOW WE DETERMINE SCORES LEARN MORE ABOUT EWG VERIFIED®

Data Availability:

Limited

Peter Thomas Roth Niacinamide Discoloration Treatment

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Ingredient concerns

See how this product scores for common concerns.

MODERATE

Cancer
MODERATE

Allergies & Immunotoxicity
LOW

Developmental and Reproductive Toxicity
MODERATE

Use Restrictions

Ingredient scores

Ingredients are scored based on their formulation and concentration in this product. Click on an ingredient for more information.

WATER
Appeared as: WATER/AQUA/EAU

Data Availability: Robust

FUNCTION(S)	solvent
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NIACINAMIDE

Data Availability: Fair

FUNCTION(S)	hair conditioning agent, skin-conditioning agent - miscellaneous, smoothing
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ISONONYL ISONONANOATE

Data Availability: Limited

FUNCTION(S)	skin-conditioning agent - emollient, antistatic, emollient, skin conditioning
CONCERNS	• Use restrictions (low)
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DIMETHYL ISOSORBIDE

Data Availability: Limited

FUNCTION(S)	solvent, viscosity decreasing agent, viscosity controlling
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TRANEXAMIC ACID

Data Availability: Fair

FUNCTION(S)	cosmetic astringent, skin-conditioning agent - miscellaneous, astringent, skin conditioning
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DIMETHICONE

Data Availability: Limited

FUNCTION(S)	antifoaming agent, skin-conditioning agent - occlusive, skin protectant, antifoaming, emollient, skin conditioning, skin protecting
CONCERNS	• Use restrictions (moderate) • Persistence and bioaccumulation (high) • Non-reproductive organ system toxicity (moderate) • Ecotoxicology (low)
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PROPANEDIOL

Data Availability: Fair

FUNCTION(S)	solvent, viscosity decreasing agent, viscosity controlling
CONCERNS	• Cancer (low) • Enhanced skin absorption • Endocrine disruption (low) • Irritation (skin, eyes, or lungs) (high)
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PENTYLENE GLYCOL

Data Availability: Limited

FUNCTION(S)	solvent, skin conditioning
CONCERNS	• Allergies/immunotoxicity (low) • Enhanced skin absorption • Irritation (skin, eyes, or lungs) (low)
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CAPRYLIC/ CAPRIC TRIGLYCERIDE
Appeared as: CAPRYLIC/CAPRIC TRIGLYCERIDES

Data Availability: Limited

FUNCTION(S)	fragrance ingredient, skin-conditioning agent - occlusive
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ALPHA-ARBUTIN

Data Availability: Limited

FUNCTION(S)	antioxidant, skin-conditioning agent - miscellaneous, skin conditioning
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GLYCERYL MONOSTEARATE
Appeared as: GLYCERYL STEARATE

Data Availability: Limited

FUNCTION(S)	fragrance ingredient, skin-conditioning agent - emollient, surfactant - emulsifying agent, emollient, emulsifying
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C9-12 ALKANE

Data Availability: None

FUNCTION(S)	solvent
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CETYL ALCOHOL

Data Availability: Limited

FUNCTION(S)	emulsion stabilizer, fragrance ingredient, opacifying agent, surfactant - emulsifying agent;surfactant - foam booster, viscosity increasing agent - aqueous, viscosity increasing agent -nonaqueous, emollient, emulsifying, emulsion stabilising, foam boosting, masking, opacifying, surfactant, viscosity controlling
CONCERNS	• Non-reproductive organ system toxicity (moderate)
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BUTYROSPERMUM PARKII (SHEA) BUTTER

Data Availability: Limited

FUNCTION(S)	skin-conditioning agent - miscellaneous, skin-conditioning agent - occlusive, viscosityincreasing agent - nonaqueous, skin conditioning, viscosity controlling
CONCERNS	• Allergies/immunotoxicity (low) • Use restrictions (low)
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CITRIC ACID

Data Availability: Good

FUNCTION(S)	chelating agent, fragrance ingredient, ph adjuster, buffering, chelating, masking
CONCERNS	• Use restrictions (moderate)
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KOJIC ACID

Data Availability: Limited

FUNCTION(S)	antioxidant
CONCERNS	• Cancer (moderate) • Allergies/immunotoxicity (moderate) • Use restrictions (high) • Endocrine disruption (moderate)
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MORUS ALBA (WHITE MULBERRY) ROOT EXTRACT

Data Availability: Limited

FUNCTION(S)	skin-conditioning agent - miscellaneous
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RESVERATROL

Data Availability: Fair

FUNCTION(S)	antioxidant, skin protectant, skin protecting
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SCUTELLARIA LATERIFLORA EXTRACT

Data Availability: None

FUNCTION(S)	skin conditioning
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HYDRANGEA ARBORESCENS ROOT EXTRACT

Data Availability: None

FUNCTION(S)	not reported, skin conditioning
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SQUALANE

Data Availability: Limited

FUNCTION(S)	hair conditioning agent, skin-conditioning agent - occlusive, emollient, hair conditioning, refatting, skin conditioning
CONCERNS	• Endocrine disruption (low)
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HYDROLYZED VEGETABLE PROTEIN

Data Availability: Limited

FUNCTION(S)	hair conditioning agent, skin-conditioning agent - miscellaneous, antistatic, hair conditioning, skin conditioning
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PHENOXYETHANOL

Data Availability: Limited

FUNCTION(S)	fragrance ingredient, preservative
CONCERNS	• Allergies/immunotoxicity (low) • Use restrictions (moderate) • Non-reproductive organ system toxicity (moderate) • Irritation (skin, eyes, or lungs) (high) • Occupational hazards (high)
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PEG-100 STEARATE

Data Availability: Limited

FUNCTION(S)	surfactant - cleansing agent
CONCERNS	• Non-reproductive organ system toxicity (low) • Contamination concerns (ETHYLENE OXIDE and 1,4-DIOXANE)
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TOCOPHERYL ACETATE

Data Availability: Fair

FUNCTION(S)	antioxidant, skin-conditioning agent - miscellaneous, skin conditioning
CONCERNS	• Cancer (low) • Allergies/immunotoxicity (moderate) • Contamination concerns (HYDROQUINONE)
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POLYACRYLATE CROSSPOLYMER-6

Data Availability: None

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PEG-75 STEARATE

Data Availability: Limited

FUNCTION(S)	surfactant - cleansing agent
CONCERNS	• Non-reproductive organ system toxicity (low) • Contamination concerns (ETHYLENE OXIDE and 1,4-DIOXANE)
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CETEARETH-20

Data Availability: Limited

FUNCTION(S)	surfactant - cleansing agent, surfactant - solubilizing agent
CONCERNS	• Enhanced skin absorption • Use restrictions (low) • Irritation (skin, eyes, or lungs) (low) • Contamination concerns (ETHYLENE OXIDE and 1,4-DIOXANE)
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STEARETH-20

Data Availability: Limited

FUNCTION(S)	surfactant - cleansing agent, surfactant - emulsifying agent, surfactant - solubilizing agent
CONCERNS	• Use restrictions (low) • Non-reproductive organ system toxicity (low) • Irritation (skin, eyes, or lungs) (low) • Contamination concerns (ETHYLENE OXIDE and 1,4-DIOXANE)
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SILICA, AMORPHOUS
Appeared as: SILICA

Data Availability: Good

FUNCTION(S)	abrasive, absorbent, anticaking agent, bulking agent, opacifying agent, suspending agent- nonsurfactant, anticaking, opacifying
CONCERNS	• Cancer (moderate) • Use restrictions (low) • Persistence and bioaccumulation (high) • Non-reproductive organ system toxicity (low) • Irritation (skin, eyes, or lungs) (low)
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AMMONIUM ACRYLOYLDIMETHYLTAURATE/ BEHENETH-25 METHACRYLATE CROSSPOLYMER

Data Availability: Fair

FUNCTION(S)	emulsion stabilizer, emulsion stabilising
CONCERNS	• Cancer (moderate) • Allergies/immunotoxicity (moderate) • Non-reproductive organ system toxicity (low) • Irritation (skin, eyes, or lungs) (high)
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DIMETHICONOL

Data Availability: Limited

FUNCTION(S)	antifoaming agent, skin-conditioning agent - emollient, antifoaming, emollient, moisturising
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COCO-CAPRYLATE/ CAPRATE

Data Availability: Limited

FUNCTION(S)	skin-conditioning agent - emollient, emollient, skin conditioning
CONCERNS	• Enhanced skin absorption • Use restrictions (low) • Irritation (skin, eyes, or lungs) (low)
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HYDROXYETHYL ACRYLATE/ SODIUM ACRYLOYLDIMETHYL TAURATE COPOLYMER

Data Availability: None

FUNCTION(S)	emulsion stabilizer, opacifying agent, suspending agent - nonsurfactant, viscosityincreasing agent - aqueous, emulsion stabilising, viscosity controlling
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TITANIUM DIOXIDE

Data Availability: Good

FUNCTION(S)	colorant, opacifying agent, sunscreen agent, ultraviolet light absorber
CONCERNS	• Cancer (moderate) • Non-reproductive organ system toxicity (moderate) • Occupational hazards (high)
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SODIUM PHYTATE

Data Availability: Limited

FUNCTION(S)	chelating agent, oral care agent, chelating, oral care
CONCERNS	• Cancer (low) • Non-reproductive organ system toxicity (low) • Irritation (skin, eyes, or lungs) (low)
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DIETHYLHEXYL SYRINGYLIDENEMALONATE

Data Availability: None

FUNCTION(S)	skin protectant, skin protecting
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POTASSIUM SORBATE

Data Availability: Limited

FUNCTION(S)	fragrance ingredient, preservative
CONCERNS	• Allergies/immunotoxicity (moderate) • Non-reproductive organ system toxicity (low)
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SODIUM BENZOATE

Data Availability: Fair

FUNCTION(S)	fragrance ingredient, preservative, anticorrosive, masking
CONCERNS	• Use restrictions (moderate) • Non-reproductive organ system toxicity (low)
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POLYSORBATE-60

Data Availability: Limited

FUNCTION(S)	fragrance ingredient, surfactant - emulsifying agent, surfactant - solubilizing agent, emulsifying
CONCERNS	• Use restrictions (low) • Non-reproductive organ system toxicity (low) • Irritation (skin, eyes, or lungs) (low) • Contamination concerns (ETHYLENE OXIDE and 1,4-DIOXANE)
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POLYSORBATE-20

Data Availability: Fair

FUNCTION(S)	fragrance ingredient, surfactant - emulsifying agent, surfactant - solubilizing agent
CONCERNS	• Allergies/immunotoxicity (low) • Use restrictions (low) • Non-reproductive organ system toxicity (low) • Irritation (skin, eyes, or lungs) (low) • Contamination concerns (ETHYLENE OXIDE and 1,4-DIOXANE)
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T-BUTYL ALCOHOL

Data Availability: Fair

FUNCTION(S)	denaturant, fragrance ingredient, solvent, perfuming
CONCERNS	• Cancer (moderate) • Persistence and bioaccumulation (moderate) • Non-reproductive organ system toxicity (moderate) • Irritation (skin, eyes, or lungs) (high) • Occupational hazards (high)
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CAPRYLIC/ CAPRIC TRIGLYCERIDE

Data Availability: Limited

FUNCTION(S)	fragrance ingredient, skin-conditioning agent - occlusive
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CAPRYLYL GLYCOL

Data Availability: Limited

FUNCTION(S)	hair conditioning agent, skin-conditioning agent - emollient, emollient, hair conditioning, humectant, skin conditioning
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HEXYLENE GLYCOL

Data Availability: Fair

FUNCTION(S)	fragrance ingredient, solvent, viscosity decreasing agent, emulsifying, perfuming, skin conditioning, surfactant
CONCERNS	• Allergies/immunotoxicity (low) • Irritation (skin, eyes, or lungs) (high)
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SORBITAN ISOSTEARATE

Data Availability: None

FUNCTION(S)	surfactant - emulsifying agent, emulsifying
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Ingredients from packaging:

Water/Aqua/Eau, Niacinamide, Isononyl Isononanoate, Dimethyl Isosorbide, Tranexamic Acid, Dimethicone, Propanediol, Pentylene Glycol, Caprylic/Capric Triglycerides, Alpha-Arbutin, Glyceryl Stearate, C9-12 Alkane, Cetyl Alcohol, Butyrospermum Parkii (Shea) Butter, Citric Acid, Kojic Acid, Morus Alba (White Mulberry) Root Extract, Resveratrol, Scutellaria Lateriflora Extract, Hydrangea Arborescens Root Extract, Squalane, Hydrolyzed Vegetable Protein, Phenoxyethanol, Peg-100 Stearate, Tocopheryl Acetate, Polyacrylate Crosspolymer-6, Peg-75 Stearate, Ceteareth-20, Steareth-20, Silica, Ammonium Acryloyldimethyltaurate/Beheneth-25 Methacrylate Crosspolymer, Dimethiconol, Coco-Caprylate/Caprate, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Titanium Dioxide, Sodium Phytate, Diethylhexyl Syringylidenemalonate, Potassium Sorbate, Sodium Benzoate, Polysorbate 60, Polysorbate 20, T-Butyl Alcohol, Caprylic/Capric Triglyceride, Caprylyl Glycol, Hexylene Glycol, Sorbitan Isostearate.

Product's animal testing policies

Some cosmetics companies have taken People for the Ethical Treatment of Animals and Leaping Bunny animal-testing pledges. For consumers who are concerned about companies’ policies on animal testing, Skin Deep reports this information.

Unknown

Leading international certifiers PETA and Leaping Bunny have no information concerning this company’s use of animal testing.

Understanding scores

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

Hazard score

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.

Data availability

The Skin Deep data availability rating reflects the number of scientific studies about the product or ingredient in the published scientific literature.

NONE LIMITED FAIR GOOD ROBUST

Low Availability

Moderate Availability

High Availability