Tromethamine (base)

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CAS No. 77-86-1

Tromethamine is rapidly becoming the preferred buffer and mild neutralizing amine for personal care and cosmetic products. The lower equivalent weight and higher pKa value of Tromethamine means it is more efficient than Triethanolamine (TEA) at lowering pH. Since Tromethamine is oxidatively stable, it should not cause yellowing or darkening in skin-care preparations upon storage.


• Skin treatment gels
• Sun blocks and sun screen lotions
• Detergent cleansing gels
• Spray-on lotions
• Cosmetic preparations


• 100% Biodegradable
• European Cosmetic Directive 76/768/EEC compliant
• China Food and Drug Administration “Safety and Technical Standards for Cosmetics” compliant – 2008
• ASEAN Cosmetic Directive compliant
• CTFA, including listing in USA and Japan (Tromethamine) 
• ISO 9000:2000 certified

INCI: Tromethamine

California Prop 65 Statement: This product contains no listed substances known to the State of California to cause cancer, birth defects, or other reproductive harm.

Tromethamine Specification Sheet - Coming Soon!

Tromethamine SDS - Coming Soon!

Tromethamine is use dependent, for example some rheology modifiers may need to have the neutralizer added before or after.  Pre-dissolving the powder in water is not necessary, however, you can if you prefer. Tromethamine is heat tolerant, so you can add it in the first water phase as well to speed up it dissolving .

Typical usage rate: 0.1-1%, as needed to lower pH
Appearance: White crystalline powder
Odor: Odorless
pKa: 8.1
Molecular Weight: 121.14 g/mol
Solubility: Soluble in water and alcohol

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