An antioxidant stabilizer for the formula. It protects the oil phase from oxidation. Well tolerated.
Topical application
BLimited evidence. One RCT or several controlled studies with limitations.
A functional antioxidant stabilizer. Safe.
Octadecyl di-t-butyl-4-hydroxyhydrocinnamate (INCI: Octadecyl Di-t-butyl-4-hydroxyhydrocinnamate) is a technical-grade antioxidant. In a formula it protects the oil phase from oxidation, slowing the rancidity of oils and fats and keeping the product stable over time. This is a functional ingredient, not a care active. Its antioxidant action targets the formula, not the skin; it provides no anti-aging effect or protection against skin oxidative stress. Its value is preserving the product, which is useful in itself. Topically it is not systemically relevant, so it can be used during pregnancy and breastfeeding without concern. Tolerance is high, with low irritation and allergy potential. It is used in tiny amounts as a stabilizer, which lowers any risk further, and it is suitable for sensitive skin.
Irritation potential
LowAllergen risk
LowPregnancy
SafeSuitable for
The Evigrade extension adds an evidence panel to iHerb, Sephora, Druni and 12 more stores. This ingredient and every other one in the product show evidence-tier, allergen risk and pregnancy/lactation flags at a glance.
Octadecyl Di-t-butyl-4-hydroxyhydrocinnamate is considered safe during pregnancy at typical cosmetic concentrations. Systemic absorption through the skin is minimal.
Octadecyl Di-t-butyl-4-hydroxyhydrocinnamate suits: normal, dry, combination, oily, sensitive.
An antioxidant stabilizer for the formula.
The INCI name is Octadecyl Di-t-butyl-4-hydroxyhydrocinnamate. It may also appear as: Октадецил ди-трет-бутил-4-гидроксигидроциннамат.
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