Bioactive peptide
DECAPEPTIDE-39
Safety score · 0–100
Fine
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
A ten-amino-acid peptide used in skincare and haircare for signalling benefits like firming or hair density. Generally well tolerated, with most claims based on supplier studies.
Function
Skin benefits
- Marketed for hair and skin signalling benefits
- Low irritation at typical cosmetic levels
- Water-soluble and easy to formulate
- Active at trace use levels
Known concerns
- Efficacy data largely supplier-driven
- No independent SCCS or CIR opinion
- Limited long-term human data
- Premium pricing relative to demonstrated effect
References
EU CosIng database
European Commission cosmetic ingredient registry: regulatory status, restrictions, authorised functions.
Related bioactive peptides
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This profile is for educational purposes and does not constitute medical advice. Regulatory status and scientific understanding evolve, so always read the physical product label and consult a healthcare professional for personal concerns.