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Stearic acid is a fatty acid. Fatty acids are prepared from natural fats, in this case from vegetable oil.

Stearic acid is used for several purposes. In combination with, for example, potassium carbonate or other basic substances, stearic acid has an emulsifying effect. The stearic acid reacts with these substances to form a soap. This soap is the actual emulsifier. This emulsifier is hardly used today, but it used to be very common, especially in cleansing creams. Shaving soap was also often made from stearic acid. In addition, an addition of stearic acid increases the firmness of a cream.

Our stearic acid is suitable for cosmetics. The less pure cheaper variants, usually called stearin, often still contain impurities that can lead to skin irritation. Do not use this impure stearin in cosmetics.

The designation according to INCI: Stearic Acid.