Conditioning Agent
R-(METHIONYL SH-POLYPEPTIDE-31 DECAPEPTIDE-40)
Safety score · 0–100
Fine
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
A biotech peptide active with more uncertainty than a simple moisturizer, though limited skin penetration keeps risk below the worst cases.
R-(METHIONYL SH-POLYPEPTIDE-31 DECAPEPTIDE-40) is a recombinant protein or fusion peptide produced by fermentation for skin-conditioning or protective claims. Large proteins usually penetrate intact skin poorly, but this is still a biologically complex, less-established ingredient class than ordinary emollients or humectants. The main concern is limited independent long-term cosmetic safety data.
Function
Skin benefits
- Softens skin
- Supports barrier comfort
Known concerns
- Novel biotech peptide with limited independent safety data
- Protein-based ingredients can trigger sensitivity in some users
References
EU CosIng database
European Commission cosmetic ingredient registry: regulatory status, restrictions, authorised functions.
Related conditioning agents
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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.