Penterythrityl Tetra-Di-t-Butyl Hydroxyhydrocinnamate: What is this ingredient?
A synthetic antioxidant stabilizer used to help protect oils in cosmetic formulas from oxidation.
Penterythrityl Tetra-Di-t-Butyl Hydroxyhydrocinnamate
One-line definition
A synthetic antioxidant stabilizer used to help protect oils in cosmetic formulas from oxidation.
Key functions
A synthetic antioxidant stabilizer used to help protect oils in cosmetic formulas from oxidation.
Antioxidant
Skin response can vary by skin type and formula, so patch testing is recommended for sensitive skin.

LA ROCHE-POSAY
dermocosmetic
Product Guide • 2026-05-26