Skip to main content

Zinc Stearate

Medically reviewed by Last updated on Sep 7, 2023.

Excipient (pharmacologically inactive substance)

What is it?

Zinc stearate (C36H70O4Zn) is a compound with variable proportions of stearic and palmitic (fatty) acids. Zinc stearate is made by reacting sodium stearate with a solution of zinc sulfate.

Zinc stearate can be used as a water-repellent, a protective agent used in powders and ointments in the treatment of eczema, acne, and other skin diseases.[1] It may also be used as a lubricant in cosmetic formulations to improve texture and smoothness. Zinc stearate has antiseptic, astringent and topical protective properties.[2]

List of medications using Zinc Stearate


  1. Zinc stearate (Stedmans Medical Dictionary). Accessed 8/21/2012.
  2. NCBI PubChem. Stearic acid. Accessed 8/21/212.

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.