Hydroxyhydrocinnamate

Hydroxyhydrocinnamate is a phenolic antioxidant compound used in cosmetics and personal care formulations. It's included to stabilize products against oxidation and extend shelf life, with supporting evidence considered moderate rather than strong.
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Ingredient Snapshot

Overview
An antioxidant that helps keep formulas fresh and stable over time.
Category
Antioxidant, Preservative
Type
Antioxidant

Ingredient Ratings

Overall Rating

Fair

Comedogenic Risk

None

Skin Benefits

Slows formula degradation from air and light and may offer mild antioxidant support for skin; overall evidence is moderate.

Uses In Skincare & Cosmetics

Added to serums, sunscreens, and creams as a co-antioxidant or preservative to maintain product freshness.

Comedogenic Rating

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

Safety

Generally considered safe at typical cosmetic levels, with a low but possible risk of transient irritation in reactive skin. No widely recognized specific regulatory restrictions noted.

Is Hydroxyhydrocinnamate a Good Ingredient?

Rated Fair because it slows oxidative degradation in the formula, but the human skin benefits appear modest and the evidence is limited. Sensitive users may experience mild irritation or sensitization, and effectiveness varies by formula and dose, none of which pushes it past a middling rating.