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pH Adjuster

TEA-HYDROCHLORIDE

CAS 637-39-8
45

Safety score · 0–100

Moderate

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

The HCl salt of triethanolamine, used as a pH buffer. TEA chemistries are restricted in the EU because they can form nitrosamines if combined with nitrosating ingredients.

Function

VISCOSITY CONTROLLING

Skin benefits

  • pH adjuster
  • Buffering agent in formulas

Known concerns

  • Triethanolamine can form nitrosamines with secondary nitrosating agents
  • EU SCCS limits TEA use
  • Eye irritation reports

References

EU

EU CosIng database

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

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Check your shelf

Find TEA-HYDROCHLORIDE in your products.

Scan any cosmetic product with LuxSense to see if it contains TEA-HYDROCHLORIDE 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, so always read the physical product label and consult a healthcare professional for personal concerns.