amino_acid_derivative
HYDROXYISOLEUCINE
Safety score · 0–100
Fine
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
Hydroxyisoleucine is a hydroxylated branched-chain amino acid used as a skin-conditioning ingredient with limited cosmetic-specific safety and efficacy data.
Skin benefits
- amino acid derivative with humectant potential
- may support barrier function
- low irritation profile expected
Known concerns
- very limited cosmetic dermatology literature
- stability and impurity profile vary
- biological effects on skin not well characterised
References
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.