Stearic acid is a naturally occurring fatty acid that is found in animal and vegetable fats. In dietary supplements, it is typically a combination of stearic and palmitic acids. Stearic acid is used as a lubricantin capsules and tablets and is also used widely in cosmetics and food products 1. It is used in topical formulations to assist in mixing ingredients and to stabilize oil-in-water mixtures 2.
Stearic acid is approved by the U.S. Food and Drug Administration (FDA) as generally recognized as safe (GRAS) (21CFR184.1090) and is generally regarded as a nontoxic and nonirritating material 1. It is also included in the U.S. FDA Inactive Ingredients Guide as safe to use in the amounts present in our products 3.