Beauty Q & A: What Does Triethanolamine Do?

by thebeautybrains on July 26, 2006 · 1 comment

Li Wants To Know:
What does Triethanolamine do? I’ve seen it in a lot of Lush products.

The Right Brain’s Soap Opera:
Triethanolamine is a type of chemical known as a “base” meaning it has a high pH.

A base is the opposite of an acid, which has a low pH. (pH, for those of you who skipped out on High School chemistry, is a measure of many hydrogen ions there are in a solution. If you’re interested, go read about it here. )

Anyway, acids and bases combine to form different kinds of salts. Acids that are made from natural fats and oils (like stearic acid) can react with bases like triethanolamine to form a special kind of salt called a soap. Lush uses triethanolamine and stearic acid to form a natural soap that keeps the oils and water in the cream mixed together.

{ 1 comment… read it below or add one }

Elena September 18, 2009 at 11:21 am

Regarding what yopu say about Lush: what do you mean by “natural” soap? What’s “natural” in triethanolamine stearate?
A soap, normally, is meant to be washed away from the skin in a few seconds, but creams stay on all day, can the “soap”. i mean the triethanolamine stearate harm the skin?

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