Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate

Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate is a hindered phenolic antioxidant widely used in cosmetic formulations. It protects oils and sensitive ingredients from oxidation, extending product freshness and storage stability.
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Ingredient Snapshot

Overview
An antioxidant that keeps oils in a formula from turning rancid.
Category
Antioxidant, Preservative
Type
Antioxidant

Ingredient Ratings

Overall Rating

Great

Comedogenic Risk

None

Skin Benefits

Preserves product freshness by limiting rancid odors and off-tones. Indirectly supports longevity of vulnerable actives by reducing oxidative stress in the formula.

Uses In Skincare & Cosmetics

Used in sunscreens, facial oils, and hair conditioners to reduce breakdown from air, light, and elevated storage temperatures.

Comedogenic Rating

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

Safety

Considered low risk at standard cosmetic levels; irritation is rare but possible in very sensitive skin. Patch testing is prudent if you react to phenolic antioxidants.

Is Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate a Good Ingredient?

Earns a Great rating for its high efficacy at low doses and strong safety track record, maintaining formula integrity with minimal irritation potential. It reliably guards oils and actives from oxidation over time, which is what distinguishes it from a merely good antioxidant.

Products with Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate

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