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Moumoujus

ALUMINUM STEARATES.

Valuable CAS - / ANTICAKING, EMULSION STABILISING, OPACIFYING, SKIN CONDITIONING - EMOLLIENT, VISCOSITY CONTROLLING

A metallic soap primarily used to stabilize emulsions and control viscosity in formulations. It provides a water-repellent barrier on the skin, enhancing texture with a smooth, non-greasy feel.

Summary

viscosity controlling emulsion stabilising anticaking colorant

Science

Mechanism of Action

It acts as a metallic soap, bridging oil and water phases to stabilize emulsions and increase the viscosity of lipid components. On skin, it forms a hydrophobic layer, offering water-repellency and a silky, non-greasy finish.

Research

Clinical Evidence

Low confidence
Effective range N/A
Optimal

N/A

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Oil
Optimal pH 4 – 9
0 7 14

Stability

Insoluble in water and ethanol, it is soluble in hot vegetable and mineral oils. It degrades into stearic acid and aluminum salts when exposed to strong acids.

Conflicts

  • strong acids
  • strong oxidizing agents
  • alkalis

Safety

Safety Profile

CIR Status
Safe as used
Max tested
22%
Sensitization risk Low

The CIR Expert Panel concluded it is safe when formulated to be non-irritating. Studies on related salts observed minimal to mild irritation at concentrations up to 1.5%.

Your Skin

Skin Compatibility

Yes Normal
Yes Dry
Yes Oily
Yes Sensitive
Irritancy Low
Comedogenicity Low

Our Assessment

Verdict

Valuable

Aluminum Stearates are valuable for stabilizing emulsions and enhancing formulation texture, providing a low-irritancy, silky finish suitable for all skin types.

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