Fragrance
TETRAMETHYLDECENEDIONE
Safety score · 0–100
Fine
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
A fragrance chemical added purely for scent, not skin benefit. Fine in rinse-off and leave-on products at normal use levels; skip if your skin reacts to fragrance.
Tetramethyldecenedione (CAS 13851-07-5) is an aliphatic alpha,beta-unsaturated diketone used as a fragrance raw material. Fragrance chemicals are typically used at very low concentrations (ppm level), regulated in the EU under cosmetic fragrance allergen labelling rules when over threshold, and subject to IFRA usage recommendations. Unsaturated carbonyls can be mild skin sensitizers in a minority of users, which is the standard fragrance-ingredient caveat. No SCCS restriction on this specific compound is published. Evidence level moderate: industry fragrance toxicology data is reasonable, but independent dermatological literature is thin.
Function
Skin benefits
- Provides scent character in fragrance compositions
- Used at low ppm-level concentrations
Known concerns
- Fragrance chemical — potential sensitizer in a minority of users
- IFRA use limits apply
- Minor diketone; reactivity profile warrants controlled exposure
References
EU CosIng database
European Commission cosmetic ingredient registry — regulatory status, restrictions, authorised functions.
Related fragrances
Check your shelf
Find TETRAMETHYLDECENEDIONE in your products.
Scan any cosmetic product with LuxSense to see if it contains TETRAMETHYLDECENEDIONE 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.