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Skin Conditioning

ACETYL CYSTEINYL D-TETRAPEPTIDE-1 AMINE TRIFLUOROACETATE

Updated
60

Safety score · 0–100

Fine

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

About

A proprietary cysteine-tetrapeptide salt used at very low levels for antioxidant claims. Peptide itself is likely mild, but the trifluoroacetate counterion raises environmental concern.

Skin benefits

  • Cysteine-containing acetylated peptide for antioxidant signaling
  • Used at very low percentages
  • Targeted skin-conditioning claim

Known concerns

  • Trifluoroacetate counterion is environmentally persistent (PFAS-adjacent)
  • No public safety data for this specific sequence
  • Sulfur odor risk from cysteine

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.