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Silk protein

HYDROLYZED FIBROIN

80

Safety score · 0–100

Good

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

Hydrolyzed Fibroin is silk protein broken down into small peptides that absorb into skin and hair. It boosts moisture, supports elasticity and forms a light protective film with strong safety data.

Function

HAIR CONDITIONING, SKIN CONDITIONING

Skin benefits

  • Excellent film-forming hydration boosting stratum corneum moisture 25 to 40 percent
  • Silk peptides support skin elasticity and barrier function
  • Useful for both hair and skin conditioning
  • Well documented safety profile from CIR

Known concerns

  • Animal-derived from silkworm cocoons, not vegan
  • Theoretical protein sensitization risk in rare individuals
  • Sustainability depends on silk sourcing

References

EU

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, so always read the physical product label and consult a healthcare professional for personal concerns.