beauty
cleaning
food
pharma

Quercetin

CAS 73123-10-1 · 80/100 · High conf.

Also registered as 2 other CAS numbers

74893-81-5 · 117-39-5

Concern score

80/100Critical concern based on regulatory listings.

High confidence

Quercetin in plain language

What it is: Also known as QUERCETIN and QUERCITRON · 2-(3,4-dihydroxyphenyl)-3,5,7-trihydroxychromen-4-one · 3'-HYDROXYKAEMPFEROL · C.I. 75670 · CI-75670 · Flavone, 3,3',4',5,7-PENTAHYDROXY-
Show all 34 names
Lipoflavon · Meletin · Quercetine · Quercetol · Quertin · Quertine · Sophoretin · Xanthaurine · 2-(3,4-Dihydroxyphenyl)-3,5,7-trihydroxy-4H-benzopyran-4-one · 2-(3,4-Dihydroxyphenyl)-3,5,7-trihydroxy-4H-chromen-4-one · 3,3',4',5,7-Pentahydroxyflavon · 3,3',4',5,7-Pentahydroxyflavone · 3,3',4',5,7-pentahidroxiflavona · 3,5,7,3',4'-Pentahydroxyflavone · 3,5,7-TRIHYDROXY-2-(3,4-DIHYDROXYPHENYL)-4H-CHROMEN-4-ONE · C.I. Natural Yellow 10 · C.I. Natural red 1 · Corvitin · Cyanidelonon 1522 · Cyanidenolon 1522 · Flavone, 3,4',5,5',7-PENTAHYDROXY- · Flavin meletin · Korvitin · LDN-0052529 · Quercitin · T-Gelb bzw. grun 1 · Quercetin (constituent of ginkgo) · Quercetin (constituent of hawthorn leaf with flower)
What it does: Used in cosmetics as an antioxidant and a skin-conditioning agent.
Antioxidant
Skin conditioning
Colour
Conditioner
Is it a concern?: Critical concern: no hazard classifications on record. It is listed for cosmetic use in the EU.

Why it's flagged

EPA CPDat observed this chemical in 21 composition records across product categories including Personal care.

The score describes this ingredient's chemical identity — its hazard profile from published classifications and regulatory status — not the safety of any product it appears in.

Regulation

No restrictions found. Quercetin appears in these published regulatory listings.

In marketed US drugs

Recorded in these product areas

Found in consumer products
Beauty
Cleaning

EUCosIngActiveQuercetin is the organic compound that conforms to the formula
- Quercetin is the organic compound that conforms to the formulaSource →
GLOBALJECFANO ADI ALLOCATEDJECFA evaluation lists ADI NO ADI ALLOCATED. Functional class: colour.
- JECFA evaluation lists ADI NO ADI ALLOCATED. Functional class: colour.Source →
USEPAcommercial use observedEPA CPDat observed this chemical in 21 composition records across product categories including Personal care. EPA CPDat classifies this chemical for functional uses including Antioxidant, Softener and conditioner.
- EPA CPDat observed this chemical in 21 composition records across product categories including Personal care. EPA CPDat classifies this chemical for functional uses including Antioxidant, Softener and conditioner.Source →
USFDAmarketed drug occurrenceFDA NDC lists this ingredient in 18 active drug products and 23 total products.
- FDA NDC lists this ingredient in 18 active drug products and 23 total products.Source →
USFDAlisted in openFDA substanceopenFDA substance registry classifies this ingredient as chemical.
- openFDA substance registry classifies this ingredient as chemical.Source →

Expert safety opinions

Independent scientific assessments cited by the records we hold, with the year and link where the record gives one.

SCCS
EU Scientific Committee on Consumer Safety
No SCCS opinion on file.
CIR
Cosmetic Ingredient Review (US expert panel)
No CIR safety assessment on file.
JECFA
Joint FAO/WHO Expert Committee on Food Additives
- JECFA evaluation lists ADI NO ADI ALLOCATED. Functional class: colour.
  Year not recorded · GLOBAL JECFA listing · Read the source →

Evidence & sources

No graded research studies for Quercetin yet. This record is compiled from the published data sources below — registries and regulatory listings, not study findings.

8 data sources

Where this comes from

CosIng
regulatory · updated 2026-09-23
Open →
EPA Chemical and Products Database
exposure · updated September 2018
Open →
EPA DSSTox Identifiers
chemistry · updated 2025-12-29
Open →
FDA National Drug Code Directory
regulatory · updated 2029-04-29
Open →
FDA GSRS UNII
registry · updated 2026-02-26
Open →
WHO JECFA Database
regulatory · updated 2026-10-04
Open →
openFDA Substance
registry · updated 2026-05-24
Open →
PubChem Live Enrichment
chemistry · updated 2026-05-17
Open →

Reference links (1)

Openfda substance

verywellhealth.com

Read →

Suitability

Context-specific fit derived from published classifications and the current ingredient evidence profile.

Food use

Food-use source coverage is present in the current record.

Good fit

The ingredient appears in food-oriented source coverage or allowed-use references, which makes food use easier to support than a context with no domain signal at all.

Fragrance avoidance

No fragrance-linked caution surfaced in the current profile.

Good fit

This ingredient does not currently read as a fragrance-linked driver in the published evidence and hazard profile.

Where it has been recorded

How often FDA National Drug Code directory has listed Quercetin in a product composition. These are source records, not Greenveil catalog products.

Source records

Typical roles

AntioxidantSkin conditioningColourConditioner

See products using Quercetin →

Catalog

Found in these products

Their ingredient lists include Quercetin; each product's own rating depends on its whole formula, so it is shown on the product page, not here.

See all 48 →Find products without it →