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Vitamin-peptide conjugate

BIOTINOYL PENTAPEPTIDE-4

80

Safety score · 0–100

Good

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

A pentapeptide conjugated with biotin, used in lash, brow and scalp products to support hair growth and skin renewal. Generally well tolerated, with most efficacy data coming from supplier studies.

Skin benefits

  • Biotin-conjugated pentapeptide marketed for hair, eyelash and skin support
  • Combines a vitamin moiety with a signalling peptide
  • Well tolerated in leave-on serums and lash products

Known concerns

  • Efficacy claims rely largely on supplier studies
  • Potential for low-level irritation around the eye when used in lash conditioners
  • Limited independent safety reviews

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.