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Sodium Stearate

Medically reviewed by Last updated on Jul 27, 2021.

Excipient (pharmacologically inactive substance)

What is it?

The sodium salt of stearic acid (C18H35NaO2), a naturally occurring fatty acid, is used as a pharmaceutical adjuvant in ointments, creams, and suppositories. In lotions it can stabilize an emulsion. It is also found in many personal care products like soaps, deodorants, eye shadows, shaving cream, and in some foods and in flavorings. Sodium stearate has a long history of safe use in cosmetics and is considered safe for food products by the FDA.

Top medications with this excipient


  1. EWG. Sodium stearate. Accessed March 3, 2015 at

Further information

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