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Moumoujus

ALUMINUM MYRISTATE.

Valuable CAS 4040-50-0 / ANTICAKING, EMULSION STABILISING, VISCOSITY CONTROLLING

Aluminum Myristate is an aluminum salt of myristic acid, primarily functioning as a physical/structural enhancer in skincare. It provides formula body, stabilizes oil-in-water emulsions, and acts as an anticaking agent, enhancing texture and spreadability.

Summary

anticaking emulsion stabilising viscosity controlling film-former

Science

Mechanism of Action

It physically stabilizes oil-in-water emulsions by altering interfacial tension and provides 'body' to formulas. Additionally, it functions as an anticaking agent and film-former, enhancing pigment spreadability and imparting a smooth skin feel.

Research

Clinical Evidence

High confidence
Effective range 1–10%
Optimal

N/A

Key findings

  1. 01 Concentrations from 1-10% were found safe and non-irritating for emulsion stabilization and texture enhancement (CIR, 2010).

Transparency

Dusting Analysis

Commonly dusted
Min. effective
10 μm%

Used in powdered formulations; however, it is restricted in sprayable products if particle size is below 10 μm due to inhalation concerns.

The Formula

Formulation

Solubility
Oil
Optimal pH 4 – 9
0 7 14

Stability

Highly stable across a wide pH range (acidic, basic, and neutral conditions). It enhances formula whiteness and prevents greyish discoloration in emulsions.

Conflicts

  • Can react with certain metal ions in complex chelating environments which might affect appearance

Safety

Safety Profile

CIR Status
Safe as used
Max tested
25%
Sensitization risk Low

CIR concluded Aluminum Myristate is safe in current practices, up to 25%. Specific Al-equivalent limits exist for deodorants (6.25%) and lipsticks (14%), but this ingredient has no specific regulatory caps when non-inhalable.

Your Skin

Skin Compatibility

Yes Normal
Yes Dry
No Oily
Yes Sensitive
Irritancy Low
Comedogenicity Medium

Our Assessment

Verdict

Valuable

Aluminum Myristate is a valuable ingredient for enhancing formula stability, texture, and pigment performance across a wide pH range, with a favorable safety profile.

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