Home Cosmetic Science Talk Formulating Stearic Acid and Triethanolamine emulsion system

  • ngarayeva001

    May 6, 2019 at 7:41 am

    The proportion is 2:1. Two parts of Stearic Acid to one part of TEA. 4:2 should be enough to emulsify 15% of oils. The emulsion will be liquid so you need other thickeners (cetearyl alcohol).
    The negative side is the pH. It will be 8 or more. You can’t bring it down as that will break the emulsion. Check lush’s products and you will see they are alkaline. It’s an effective, cheap and easy to use emulsifier with a relatively pleasant sensorial (strangely enough it doesn’t soap much). But I personally would apply anything above 7 on my skin.

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