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Cosmetic ingredient (INCI)

Magnesium Stearate

Used in cosmetic products as anticaking, bulking, colorant and moisturising. Magnesium Stearate is the magnesium salt of stearic acid.

Allowed colorant

EU Cosmetics Regulation (EC) No 1223/2009, Annex IV/150.

ban substances that deplete the ozone layer

The chemical behind this ingredient

Structure, properties, safety data and price information live on the chemical page.

Magnesium stearate chemical structure, C36H70MgO4, CAS 557-04-0
Magnesium stearate
CAS 557-04-0C36H70MgO4
317 suppliers
Magnesium stearate

IUPAC name: magnesium bis(octadecanoate)

  • 2D structure and identifiers
  • Measured and computed properties
  • GHS safety summary
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Magnesium Stearate suppliers

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Frequently asked questions

What is Magnesium Stearate used for in cosmetics?

Magnesium Stearate is used in cosmetic products as anticaking, bulking, colorant and moisturising. Magnesium Stearate is the magnesium salt of stearic acid.

Is Magnesium Stearate restricted in cosmetics in the EU?

Magnesium Stearate is listed in the annexes of EU Cosmetics Regulation (EC) No 1223/2009: Annex IV/150 (allowed colorant). ban substances that deplete the ozone layer Always check the full annex entry for the conditions of use.

What is the CAS number of Magnesium Stearate?

Magnesium Stearate is listed with CAS number 557-04-0 and EC number 209-150-3.

Where can I buy Magnesium Stearate?

8 suppliers list Magnesium stearate on CompoundList. Compare them below or post a buy request with your grade and quantity.