Irganox 259
PENTAERYTHRITIYL TETRA-DI-T-BUTYL HYDROXYHYDROCINNAMATE
Data confidence:High
Function
UV Filter (Chemical)
EWG Safety Score
3/10Moderate concern
About this ingredient
A synthetic hindered phenolic antioxidant that prevents oxidative degradation of oils, fats, and susceptible ingredients in cosmetic formulations. It scavenges free radicals and protects products from rancidity, discoloration, and odor changes, thereby extending shelf life and maintaining stability in sunscreens, moisturizers, and other skincare products.