Humectant
SILKWORM R-SLEEPING CHIRONOMID POLYPEPTIDE-1/R-SLEEPING CHIRONOMID POLYPEPTIDE-2
Safety score · 0–100
Fine
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
A peptide produced inside silkworms that have been engineered to express drought-tolerant midge proteins. It targets long-lasting hydration. Cosmetic safety data is thin, so it sits in the cautious-but-clean Yellow band.
Function
Skin benefits
- Skin-conditioning humectant function
- Inspired by anhydrobiosis-tolerant chironomid proteins for moisture retention
- Recombinant production reduces wild sourcing pressure
Known concerns
- Silkworm-host expression may carry residual host proteins — low but non-zero allergy risk for sericin-sensitive users
- Limited public toxicology dossier
- Heterogeneity across manufacturers
References
EU CosIng database
European Commission cosmetic ingredient registry: regulatory status, restrictions, authorised functions.
Related humectants
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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.