Skip to content

Skin Conditioning

THREONINE

CAS 72-19-5 / 80-68-2 Updated
88

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

ANTISTATICHAIR CONDITIONINGHAIR WAVING OR STRAIGHTENING

Skin benefits

  • Essential amino acid for skin proteins
  • Mild humectant action
  • Skin conditioning

Known concerns

  • No significant concerns at cosmetic concentrations

References

EU

EU CosIng database

European Commission cosmetic ingredient registry — regulatory status, restrictions, authorised functions.

PC

PubChem

U.S. NIH compound data, GHS hazard codes and toxicity literature.

View →

Related skin conditionings

Check your shelf

Find THREONINE in your products.

Scan any cosmetic product with LuxSense to see if it contains THREONINE and get a full ingredient breakdown with safety scores.

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.