Quercetin

Quercetin is a plant-derived flavonoid commonly included in skincare as an oil-soluble antioxidant. It's used to stabilize formulas and support skin's resilience against environmental stressors, and the evidence for topical use is fairly favorable.
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Ingredient Snapshot

Overview
Quercetin is a plant antioxidant that helps skin resist daily damage.
Category
Antioxidant, Soothing, Sensitive Skin
Type
Antioxidant

Ingredient Ratings

Overall Rating

Good

Comedogenic Risk

None

Skin Benefits

Helps defend skin against free-radical damage and supports a calmer-looking complexion, and can reduce the look of dullness from daily exposure.

Uses In Skincare & Cosmetics

Often included in serums, moisturizers, and eye creams to bolster antioxidant protection within daily routines, and also found in facial oils where oil-soluble actives are preferred.

Comedogenic Rating

This ingredient is not typically evaluated for comedogenicity, and no standardized rating is available.

Safety

Generally considered low risk for irritation in cosmetics, though very reactive skin should patch test. No widely recognized regulatory restrictions for typical topical use.

Is Quercetin a Good Ingredient?

Good, because as a plant-derived flavonoid antioxidant it has supportive, though not extensive, topical evidence: it helps scavenge free radicals and can aid formula stability. The evidence is promising but not as strong as benchmark antioxidants like vitamin C or E, which is what keeps it from Great.

Products with Quercetin

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