S-DECAPEPTIDE-40 NONAPEPTIDE-27
Antimicrobial
Good
About S-DECAPEPTIDE-40 NONAPEPTIDE-27
A 19-residue antimicrobial peptide combining two sequences, representing a newer class of cosmetic ingredients with some evidence of antimicrobial activity but limited safety documentation.
Detailed Analysis
s-Decapeptide-40 Nonapeptide-27 is a single-chain synthetic peptide of 19 amino acids combining Decapeptide-40 and Nonapeptide-27 sequences. It is listed in CosIng with an antimicrobial function, making it distinct from most cosmetic peptides which are primarily conditioning agents. The EU cosmetics regulation does not restrict this INCI name, but its antimicrobial classification means it may require more careful assessment for microbiome disruption.
What It Does
Skin Benefits
- ✓ Antimicrobial function
- ✓ Skin conditioning
- ✓ Potential preservative-sparing effect in formulations
Known Concerns
- ⚠ Newer ingredient with limited cosmetic safety history
- ⚠ Antimicrobial mechanism raises potential for skin microbiome disruption
Safety Score
Good
Based on EU regulatory data, published safety research, and ingredient function analysis.
References
EU CosIng Database
European Commission cosmetic ingredient registry
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