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Conditioning Agent

SH-POLYPEPTIDE-17

82

Safety score · 0–100

Good

Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.

A recombinant human interleukin-1 alpha analogue produced in E. coli, used in skin conditioning formulations.

This recombinant human peptide mirrors interleukin-1 alpha, a pro-inflammatory cytokine involved in wound healing and skin homeostasis. Produced by E. coli fermentation with a maximum of 272 amino acids, it contains only standard amino acids. The EU classifies recombinant cytokines and analogues under Annex II entry 416. While IL-1α has potent biological activity, topical cosmetic use at low concentrations is generally considered safe; however, the cytokine-like nature of this ingredient requires careful formulation to avoid inflammatory responses.

Function

SKIN CONDITIONING

Skin benefits

  • May stimulate wound healing and skin repair cascades
  • Potential for supporting skin barrier homeostasis

Known concerns

  • Cytokine-like activity — potential for pro-inflammatory responses in sensitive skin
  • Trace endotoxin risk from E. coli production system
  • Not recommended for use on compromised or inflamed skin

References

EU

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.