Last reviewed May 2026 · 1 min read

Is Magnesium Stearate vegan?

Also known as: Magnesium distearate, Octadecanoic acid, magnesium salt, E470b

E-number: E470b

Check the Label

Source can be plant or animal.

In short

It depends — Magnesium stearate is made from stearic acid, which can be derived from either animal fats (like beef tallow or lard) or plant-based oils (like palm or coconut oil).

01 · The basics

What is Magnesium Stearate?

A salt containing magnesium and stearic acid, primarily used as a flow agent, lubricant, or anti-caking agent in the manufacturing of tablets, capsules, and powders.

02 · The source

Where it comes from

Magnesium stearate is made from stearic acid, which can be derived from either animal fats (like beef tallow or lard) or plant-based oils (like palm or coconut oil). Manufacturers are not always required to disclose the source, so it's necessary to check with them or look for a vegan certification.

03 · Alternatives

Best vegan alternatives

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Frequently asked

FAQ

Is the magnesium stearate in supplements usually vegan?

Many supplement companies now use plant-based magnesium stearate due to consumer demand, but it is not universal. Look for a 'vegan' label on the packaging or check the manufacturer's website to be sure.

How can I tell if magnesium stearate is from a plant or animal source?

The easiest way is to look for a vegan certification symbol on the product packaging. If there isn't one, you may need to contact the manufacturer directly to inquire about the source of their stearic acid.

Commonly found in

Dietary supplements (tablets and capsules)Pressed candiesPharmaceutical medicationsSpices and baking mixesCosmetics