EWG Skin Deep® | What is QUERCETIN

HOW WE DETERMINE SCORES Learn more About EWG VERIFIED™

Data: Fair

Quercetin

IMAGE SOURCE: PubChem

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Other Concerns

SYNONYMS

2-(3,4-DIHYDROXYPHENYL)-3,5,7-TRIHYDROXY 4H-1-BENZOPYRAN-4-ONE, 3,3',4',5,7-PENTAHYDROXYFLAVONE, 4H-1-BENZOPYRAN-4-ONE, 2-(3,4-DIHYDROXYPHENYL)-3,5,7-TRIHYDROXY, 4H1BENZOPYRAN4ONE, 2(3,4DIHYDROXYPHENYL)3,5,7TRIHYDROXY, QUERCETIN, and QUERCETOL

This ingredient is not currently on EWG's Restricted or Unacceptable Lists.

Common concerns

See how this product scores for common concerns.

LOW

Cancer
LOW

Allergies & Immunotoxicity
LOW

Developmental and Reproductive Toxicity
LOW

Use Restrictions

Ingredient concerns

CONCERNS
DATA SOURCES

Products with this Ingredient

lip balm	6 products
facial moisturizer/treatment	5 products
bronzer/highlighter	4 products
setting powder/spray	4 products
daily use with SPF	3 products
foundation	2 products
blush	2 products
eye shadow	2 products
moisturizer	2 products
lip balm with SPF	2 products
around-eye cream	1 products
serums & essences	1 products
recreational sunscreen	1 products
toners/astringents	1 products
shampoo	1 products

Cancer

CONCERN	REFERENCE
Limited or incomplete evidence of cancer according to safety/hazard data – government assessment cannot classify as human carcinogen due to data gaps	Int'l Agency for Research on Cancer (IARC) - Carcinogens

Data gaps

CONCERN	REFERENCE
9410 studies in PubMed science library may include information on the toxicity of this chemical	NLM PubMed

Ecotoxicology

CONCERN	REFERENCE
Not suspected to be an environmental toxin	Environment Canada Domestic Substance List

Organ system toxicity (non-reproductive)

CONCERN	REFERENCE
Classified as not expected to be potentially toxic or harmful	Environment Canada Domestic Substance List

Persistence and bioaccumulation

CONCERN	REFERENCE
Not suspected to be persistent	Environment Canada Domestic Substance List
Not suspected to be bioaccumulative	Environment Canada Domestic Substance List

IARC (International Agency for Research on Cancer). 2008. Overall Evaluations of Carcinogenicity to Humans, as evaluated in IARC Monographs Volumes 1-99 (a total of 935 agents, mixtures and exposures).
NLM (National Library of Medicine). 2012. PubMed online scientific bibliography data. http://www.pubmed.gov.
EC (Environment Canada). 2008. Domestic Substances List Categorization. Canadian Environmental Protection Act (CEPA) Environmental Registry.

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