Antioxidant
DICETYL THIODIPROPIONATE
Safety score · 0–100
Good
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
Dicetyl thiodipropionate — a cetyl-chain cousin of the well-known thiodipropionate antioxidants. Same job, similar safety profile.
Dicetyl thiodipropionate (CAS 3287-12-5) is the dicetyl diester of thiodipropionic acid, a secondary antioxidant for protecting cosmetic oils from oxidation. It belongs to the thiodipropionate family reviewed by CIR, though dicetyl specifically has a thinner dedicated dossier than the distearyl or dilauryl esters. Typical use 0.005-0.1%. Safety extrapolation from the family and from general long-chain ester toxicology supports a favourable profile. Evidence level moderate given the less extensive direct dossier.
Function
Skin benefits
- Formulation antioxidant
- Protects oils
- Low irritation
Known concerns
- Less extensive dedicated data than family siblings
- Processing-aid role
References
EU CosIng database
European Commission cosmetic ingredient registry — regulatory status, restrictions, authorised functions.
Related antioxidants
Check your shelf
Find DICETYL THIODIPROPIONATE in your products.
Scan any cosmetic product with LuxSense to see if it contains DICETYL THIODIPROPIONATE and get a full ingredient breakdown with safety scores.
This profile is for educational purposes and does not constitute medical advice. Regulatory status and scientific understanding evolve — always read the physical product label and consult a healthcare professional for personal concerns.