Triethanolamine 99% (TEA 99%) – pH Adjuster & Emulsifier for Cosmetic Formulations

Triethanolamine 99% (TEA 99%) is a high-purity, multifunctional ingredient used in cosmetic and personal care formulations as a pH adjuster, neutralizing agent, and emulsifier component. It is commonly used to neutralize fatty acids, adjust formulation pH, and help stabilize emulsions.

Triethanolamine is particularly valuable in cream, lotion, gel, and surfactant-based systems where precise pH control is essential for stability, performance, and preservative effectiveness.

With a purity level of 99%, this grade offers consistent performance and reliable formulation control.

Common applications include:

• Lotions and creams

• Carbomer and acrylic acid gels

• Shampoos and liquid cleansers

• Shaving creams

• Sunscreens

• Soap and surfactant systems

• Emulsified cosmetic products

Why Formulators Choose Triethanolamine 99%

• Precise pH adjustment and neutralization

• Activates carbomers and acrylic thickeners

• Forms emulsifying systems with fatty acids

• Improves emulsion stability

• Compatible with many surfactant systems

• High purity for consistent results

Triethanolamine is frequently used to neutralize stearic acid in cream formulations, creating stable oil-in-water emulsions.

Technical Information

INCI Name: Triethanolamine
Common Abbreviation: TEA
Chemical Name: 2,2′,2″-Nitrilotriethanol
CAS Number: 102-71-6
Chemical Formula: C6H15NO3
Purity: 99%
Appearance: Clear to pale yellow viscous liquid
Solubility: Fully soluble in water and alcohol
Typical Usage Rate: 0.1% to 2.5% depending on formulation
Function: pH adjuster, neutralizer, emulsifier component

How It Works in Formulations

Triethanolamine functions primarily as a neutralizing base. In gel systems containing carbomers or acrylic polymers, TEA raises the pH and activates thickening, transforming liquid dispersions into stable gels.

In cream systems, it reacts with fatty acids such as stearic acid to form soap-based emulsifying systems, helping stabilize oil-in-water emulsions.

Because it significantly affects final product pH, accurate measurement and proper testing are essential during formulation.

Regulatory & Usage Notes

Triethanolamine is permitted for use in cosmetic products within regulated concentration limits. Always verify final pH and review regional cosmetic regulations before commercial production.