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Hair Conditioning

ACETYL TETRAPEPTIDE-3

CAS - Updated
75

Safety score · 0–100

Fine

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

About

A small acetylated peptide marketed for scalp/hair signaling. Used at trace concentrations and considered low-risk; efficacy data is mostly supplier-led.

Skin benefits

  • Hair growth signaling claims
  • Acetylated for stability
  • Used at trace ppm

Known concerns

  • Limited independent clinical data
  • Trace synthesis residuals possible

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.