Hair Conditioning
OLIGOPEPTIDE-91 SH-POLYPEPTIDE-9
Safety score · 0–100
Good
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
A synthetic fusion peptide combining two sequences for hair conditioning and repair. Modern biotech ingredient with a strong tolerance profile — generally well-suited to leave-on hair products.
Function
Skin benefits
- Synthetic fusion peptide for hair conditioning
- Designed for keratin-targeted repair
- High-purity production
- Generally well-tolerated
Known concerns
- Limited public cosmetic safety data
- Possible immunogenicity from residual host proteins
References
EU CosIng database
European Commission cosmetic ingredient registry: regulatory status, restrictions, authorised functions.
Related hair conditionings
Same plant / compound family
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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.