Description

Triethanolamine 99% (TEA)

What is Triethanolamine?

Triethanolamine (TEA) is a clear, colorless to pale yellow viscous liquid with a slight ammonia-like odor. The 99% grade is a high-purity form, used as a pH adjuster, emulsifier, and surfactant in cosmetic and skincare formulations.

It is a tertiary amine and triol, meaning it has both amine and alcohol functionalities, making it useful in a wide range of formulations.

Key Benefits & Functions:

• 🧴 pH Adjuster: Raises pH in formulations, particularly when working with acidic ingredients.

• 🧪 Emulsifier Aid: Helps emulsify oil and water phases, often used with stearic acid to create stable emulsions.

• 💧 Surfactant: Supports foaming and cleansing action in personal care products.

• 🔄 Stabilizer: Improves product consistency and shelf life when used correctly.

Common Uses:

• Lotions and creams

• Shaving foams and gels

• Hair gels and pomades

• Liquid soaps and facial cleansers

• Sunscreens

• Makeup products

• Industrial applications (lubricants, polishes, cleaners)

Usage Rates:

ApplicationTypical Usage RateLotions & Creams (with emulsifiers like stearic acid)0.5% – 3%pH AdjustmentAs needed to reach target pH (usually ~5.5–8)Shaving Creams1% – 5%Cleansers & Soaps1% – 4%

✅ Always conduct pH testing after adding TEA—it can dramatically increase pH with small amounts.

Formulation Tips:

• Often neutralizes fatty acids (like stearic acid) to form self-emulsifying soaps, creating rich, stable emulsions.

• Add slowly to water phase or after emulsification, and always monitor pH carefully.

• Use in combination with other emulsifiers or thickeners for best stability.

• Heat stable—can be added to heated water phase if needed.

• Avoid overuse, as high pH can irritate skin or destabilize products.

Safety & Handling:

• Wear gloves and goggles when handling in raw form—can be irritating to eyes and skin.

• In finished products, it is considered safe at low concentrations.

• TEA should not be used with nitrosating agents, as it can form nitrosamines (potential carcinogens).

• Avoid using in leave-on products in large amounts without proper safety testing.

Storage:

• Store in a cool, dry place away from strong oxidizers and acids.

• Keep the container tightly sealed to prevent contamination and moisture absorption.

Summary Table:

Function Typical Range pH Adjustment As needed 

Emulsification (with Stearic Acid)0.5% – 3%

Shaving/Soap Formulas1% – 5%