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Skin Conditioning

TRYPTOPHANYL HYDROXYPROLYL TRYPTOPHANYL HYDROXYPROLYL SERINE

Updated
72

Safety score · 0–100

Fine

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

About

A synthetic pentapeptide of tryptophan, hydroxyproline, and serine. Low-irritation amino acid scaffold; cosmetic efficacy claims outpace independent evidence.

Skin benefits

  • Pentapeptide marketed for skin signaling
  • Amino acid building blocks
  • Low irritation profile

Known concerns

  • Marketing-driven efficacy claims; limited independent data
  • Skin penetration of intact peptide questionable
  • Niche fantasy peptide with thin literature

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