Arachidic Acid
Explained
Arachidic Acid (also known as Eicosanoic acid) is a fatty acid naturally found in peanut oil, corn oil, or cocoa butter. In cosmetics, it is an emollient, emulsifier, and cleansing ingredient.
Like other fatty acids, it functions as an emollient that helps hydrate and smooth the skin.
As an emulsifier and cleansing agent, it helps stabilize oil-in-water formulations. This also allows oils and other impurities to be easily rinsed away.
Arachidic acid is a natural component of human sebum and research has found that patients with papulopustular rosacea show reduced levels of these fatty acids compared to healthy control groups.
This ingredient may not be safe for fungal acne because it falls within the carbon chain that Malassezia can metabolize.
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