Aluminum Dimyristate

What is Aluminum Dimyristate?

Aluminum dimyristate is the aluminum salt of myristic acid, a saturated C14 fatty acid obtained from sources like coconut or palm kernel oil. It appears as a fine, white, odorless powder insoluble in water but dispersible in oils. Primarily used in the cosmetics industry for makeup products such as powders, foundations, eyeshadows, and also in creams and lotions, it serves multiple technical roles. As an anticaking agent, it absorbs excess moisture to maintain powder flowability. In emulsions, it reinforces the interface between oil and water phases to resist separation. It modifies rheological properties to achieve optimal thickness for even application and suspension of particles. Additionally, its light-scattering particles reduce transparency, providing a smooth, opaque finish that enhances visual appeal without affecting performance.

Comedogenic Rating 0/5 Low risk of clogging pores
EWG Safety Rating 1 View on EWG →
PubChem View on PubChem →

Roles in Formulation

This ingredient serves the following purposes in cosmetic formulations:

Anticaking agent
Prevents powders from clumping by reducing moisture pickup and improving flow, keeping loose and pressed powders uniform during storage and use.
Emulsion stabilizer
Improves emulsion robustness by preventing droplet coalescence and phase separation, often by thickening, structuring, or strengthening the interfacial layer.
Viscosity controlling agent
Adjusts thickness to the desired level for stability and usability, improving dispensing, suspension, and texture across many formulation types.
Opacifying agent
Makes a formula less transparent to create a creamy, opaque look; can also help visually mask suspended particles and improve aesthetic uniformity.

Benefits

Maintains powder cosmetics in a free-flowing state by absorbing moisture and preventing lumps.

Strengthens emulsions to preserve product texture and prevent separation over time.

Adjusts formula thickness for improved spreadability and consistent user experience.

Who It's For

A quick guide for who this ingredient may suit (and who should be cautious).

Who May Benefit Who Should Avoid
Users of pressed powders and foundations seeking long-lasting uniformity.
Those with rare aluminum contact sensitivities.
Individuals applying emulsion-based creams or lotions for stable formulations.
People preferring formulations without metal salts.
People desiring opaque cosmetics with smooth, even coverage.
Individuals avoiding palm-derived ingredients for ethical reasons.

Safety Notes

  • Rated low hazard by safety assessments for typical cosmetic concentrations.
  • Minimal skin absorption expected due to its insoluble nature.

Frequently Asked Questions about Aluminum Dimyristate

What products commonly contain aluminum dimyristate?

Found in pressed powders, foundations, eyeshadows, creams, and lotions for stability and texture.

Is aluminum dimyristate safe for daily use?

Assessed as low hazard in cosmetics, suitable for regular topical application.

Does it affect skin texture negatively?

Controls viscosity for smoother application without comedogenic concerns.