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acylated_amino_acid

STEAROYL LEUCINE

CAS 14379-43-2
70

Safety score · 0–100

Fine

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

Stearoyl leucine is a fatty-acid acylated amino acid used to coat powder particles in cosmetics, improving slip and adhesion with limited independent safety review.

Skin benefits

  • used as a powder coating to improve skin feel in pressed makeup
  • imparts soft, smooth texture
  • amino acid-derived, biodegradable backbone

Known concerns

  • inhalation risk in loose powders
  • limited long-term human dermal data
  • purity and process residues vary by supplier

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.