Dilauryl Thiodipropionate
AKA “Propanoic acid, didodecyl ester, Propanoic acid 3, 3'-thiobis(didodecyl) ester, PTDE, RefChem:587954, Didodecyl 3, 3'-thiodipropionate”
Synthetic
Ingredient Facts
Dilauryl thiodipropionate
AKA: Propanoic acid, Didodecyl ester, Propanoic acid 3, 3'-thiobis(didodecyl) ester, PTDE, RefChem:587954, Didodecyl 3, 3'-thiodipropionate
Synthetic · Antioxidant · EWG: 4
Synthetic
Antioxidant
Anti-Aging
Barrier Support
Synthetic
Clean
A protective ingredient that shields beauty products from oxidation, helping them stay fresh and effective longer.
Solubility Soluble in most organic solvents
Formula
C30H58O4S
Mol. Weight
514.80
CAS #
123-28-4
Form
Liquid
State
Pellets or Large Crystals; Dry Powder, Pellets or Large Crystals, Liquid; Dry Powder; Other Solid
See origin →
Functions
Antioxidant
Fights free radicals — the unstable molecules from UV, pollution, and stress that break down collagen and cause premature aging.
Anti-Aging
Targets fine lines, wrinkles, or loss of firmness. Works by boosting collagen, speeding cell turnover, or both.
Skin Protecting
Helps rebuild and strengthen your skin barrier — the invisible shield that keeps moisture in and irritants out. Essential after over-exfoliating or harsh weather.
Neutralizes Free Radicals
Traditional Use
A synthetic antioxidant developed in the 20th century. Used in cosmetics to prevent oxidation and rancidity of oils and fats in formulations.
Skin Types
●all-skin-types
Best For
General
Melanin-Rich Skin
Suitable
Pregnancy & Breastfeeding Safe
Yes
Verified Feb 2026
Data: PubChem · CosIng · EWG · CIR