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Magnesium Stearate

Approved Ingredients
Magnesium Stearate

Magnesium Stearate

Magnesium stearate is a white, odourless powder that can be used as a lubricant and flow agent in toothpaste tablets. It is derived from a combination of magnesium and stearic acid, which are both naturally occurring substances.

In toothpaste tablets, magnesium stearate helps to ensure that the ingredients are evenly distributed and well-mixed, while also preventing the tablet from sticking as it is compressed during the manufacturing process. It also helps to improve the stability and shelf-life of the toothpaste tablet.

Magnesium stearate is biodegradable and is also approved for use in food products by regulatory agencies around the world. When combined with other ingredients, such as baking soda, and essential oils, this ingredient helps to create a gentle and effective toothpaste that promotes oral health and sustainability.


Vranić, E., Lacević, A., Mehmedagić, A., & Uzunović, A. (2004). Formulation ingredients for toothpastes and mouthwashes. Bosnian journal of basic medical sciences, 4(4), 51–58.

United States Food & Drug Administration (FDA). Food for Human Consumption: Magnesium Sterate. 21CFR184.1440

National Center for Biotechnology Information (2023). PubChem Compound Summary for CID 11177, Magnesium Stearate.

INCI Name:
Magnesium Stearate
Ingredient origins:
Coconut, Oil Palm, Mineral
Tabletting Aid
Common name:
Magnesium Stearate
EWG score: The EWG score is a hazard score ranging from 1-2 (low hazard), 3-6 (moderate hazard) and 7-10 (high hazard) published by the Environmental Working Group. Their data is sourced from the Skin Deep® database and studies published in open scientific literature.