Skin Conditioning
THREONINE
Safety score · 0–100
Good
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
An essential amino acid that the body uses to build skin proteins. Works as a gentle humectant and conditioner. Food-grade and one of the safest cosmetic ingredients.
Function
Skin benefits
- Essential amino acid for skin proteins
- Mild humectant action
- Skin conditioning
Known concerns
- No significant concerns at cosmetic concentrations
References
EU CosIng database
European Commission cosmetic ingredient registry — regulatory status, restrictions, authorised functions.
PubChem
U.S. NIH compound data, GHS hazard codes and toxicity literature.
Related skin conditionings
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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.