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ACETYL HYDROXYPROLINE

CAS 33996-33-7
87

Safety score · 0–100

Good

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

About

A modified amino acid that boosts skin elasticity and supports collagen production — the kind of ingredient that makes your skin look firmer over time.

Acetyl Hydroxyproline is an acetylated derivative of the amino acid hydroxyproline, a key component of collagen. It functions as a skin-conditioning agent and is valued in anti-aging formulations for its ability to promote collagen synthesis and improve skin firmness. Commonly used at low concentrations (0.1–2%), it is well-tolerated and not associated with significant irritation or sensitization.

Skin benefits

  • Improves skin firmness
  • Supports collagen production
  • Enhances skin elasticity

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.