Aluminum/Magnesium Hydroxide Stearate
A mineral stabilizer and thickener. It keeps pigments and oils mixed and adds texture and does not affect skin.
Supporting ingredient
It gives a product its texture, stability or shelf life. It has no claimed effect on the skin, so an efficacy tier does not apply. What is known about its safety is below
Tolerability and safety
- Irritation potential
- Low
- Allergen risk
- Low
- Pregnancy
- Safe
- Suitable for
- Normal, Dry, Combination, Oily, Sensitive
About this ingredient
Aluminum/magnesium hydroxide stearate (INCI: Aluminum/Magnesium Hydroxide Stearate) is a mineral-based stabilizer and thickener. In formulas it keeps pigments and oils evenly dispersed and helps give the product body and texture. This is a purely functional ingredient. It has no effect on the skin; its job is stability and even distribution of the formula, mostly in makeup and sunscreens. Expecting a skincare benefit from it would be asking for something outside its role. Topically it is inert and not meaningfully absorbed, so it can be used during pregnancy and breastfeeding. Tolerance is good: irritation and allergy risk are both low. Because it stays on the surface and does not penetrate, it rarely causes problems, even on sensitive skin.
Frequently asked questions
Is Aluminum/Magnesium Hydroxide Stearate safe during pregnancy?
Aluminum/Magnesium Hydroxide Stearate is considered safe during pregnancy at typical cosmetic concentrations. Systemic absorption through the skin is minimal.
What skin types is Aluminum/Magnesium Hydroxide Stearate for?
Aluminum/Magnesium Hydroxide Stearate suits: normal, dry, combination, oily, sensitive.
What is Aluminum/Magnesium Hydroxide Stearate and what does it do in cosmetics?
A mineral stabilizer and thickener.
What's the INCI name for Aluminum/Magnesium Hydroxide Stearate?
The INCI name is Aluminum/Magnesium Hydroxide Stearate.
See Aluminum/Magnesium Hydroxide Stearate in a product composition right on the store page
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Similar role in the formula
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