Octadecyl Di-t-butyl-4-hydroxyhydrocinnamate
An antioxidant stabilizer for the formula. It protects the oil phase from oxidation. Well tolerated.
Evidence by route
Topical application
A functional antioxidant stabilizer. Safe.
- CIR Cosmetic Ingredient Review safety assessment
How to read tiers A–F
- BLimited evidence. One RCT or several controlled studies with limitations
Tolerability and safety
- Irritation potential
- Low
- Allergen risk
- Low
- Pregnancy
- Safe
- Suitable for
- Normal, Dry, Combination, Oily, Sensitive
About this ingredient
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.
Frequently asked questions
Is Octadecyl Di-t-butyl-4-hydroxyhydrocinnamate safe during pregnancy?
Octadecyl Di-t-butyl-4-hydroxyhydrocinnamate is considered safe during pregnancy at typical cosmetic concentrations. Systemic absorption through the skin is minimal.
What skin types is Octadecyl Di-t-butyl-4-hydroxyhydrocinnamate for?
Octadecyl Di-t-butyl-4-hydroxyhydrocinnamate suits: normal, dry, combination, oily, sensitive.
What is Octadecyl Di-t-butyl-4-hydroxyhydrocinnamate and what does it do in cosmetics?
An antioxidant stabilizer for the formula.
What's the INCI name for Octadecyl Di-t-butyl-4-hydroxyhydrocinnamate?
The INCI name is Octadecyl Di-t-butyl-4-hydroxyhydrocinnamate.
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