Quercetin
2-(3,4-dihydroxyphenyl)-3,5,7-trihydroxy-4H-chromen-4-one
Flavonoid with potent antioxidant and anti-inflammatory properties; derived from onion skin, capers, berries; generally well tolerated; poor water solubility requires suitable solubilization system.
Function & Common Use
Antioxidant / Skin-Conditioning Agent / Anti-inflammatory Agent
Antioxidants
Anti-aging serums, anti-inflammatory moisturizers, sensitive skin formulations, sunscreens
Natural / Plant
Concentration Limits
None
None
None
None
Format restriction: None
Baby restriction: No
Pregnancy: No
IFRA: No
Frequently Asked Questions
Is Quercetin safe to use in skincare?
Quercetin has a Low concern rating from The Clean Sheet. Flavonoid with potent antioxidant and anti-inflammatory properties; derived from onion skin, capers, berries; generally well tolerated; poor water solubility requires suitable solubilization system.
Is Quercetin allowed in India?
Quercetin is currently classified as "Permitted" under Indian cosmetics regulations. The maximum permitted concentration is None.
What is Quercetin used for in cosmetics?
Quercetin functions as: Antioxidant / Skin-Conditioning Agent / Anti-inflammatory Agent. It is commonly found in: Anti-aging serums, anti-inflammatory moisturizers, sensitive skin formulations, sunscreens.
Can Quercetin cause an allergic reaction?
Yes. Quercetin has an allergen flag (No). If you have sensitive skin or known fragrance/contact allergies, patch-test products containing this ingredient before full use.
Is Quercetin safe for babies?
Quercetin has baby/child restrictions: No. Avoid using products containing this ingredient on infants unless specifically formulated and labelled for baby use.
Regulatory Status
EU Annex: None
Identifiers
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