Antioxidant
SR-(METHIONYL S-RAINBOW TROUT OLIGOPEPTIDE-1 SH-POLYPEPTIDE-50 HEXAPEPTIDE-40)
Safety score · 0–100
Fine
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
A 274-amino-acid E. coli fusion peptide with rainbow trout and human-mimicking domains, positioned for antioxidant and multi-functional skin/hair conditioning.
This recombinant fusion peptide combines rainbow trout s-Oligopeptide-1, sh-Polypeptide-50, and Hexapeptide-40 into a 274-residue chain. sh-Polypeptide-50 is a common CosIng designation for stem-cell-derived or growth-factor-related peptide mimetics. The ingredient is produced by E. coli fermentation and is not listed in EU restriction annexes. The peptide composition uses only standard amino acids; no unusual post-translational modifications are described in the CosIng entry.
Function
Skin benefits
- Antioxidant, skin protecting, humectant, and miscellaneous conditioning
- Hair conditioning
Known concerns
- E. coli endotoxin requires quality control
- Fish-derived allergenicity risk
- Growth-factor mimetic activity should be considered for sensitive skin types
References
EU CosIng database
European Commission cosmetic ingredient registry — regulatory status, restrictions, authorised functions.
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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.