Magnesium Myristate

What is Magnesium Myristate?

Magnesium Myristate is the magnesium salt of myristic acid, a saturated fatty acid derived from natural sources like coconut or palm kernel oil. In cosmetics, it appears mainly in powder-based products such as foundations, blushes, and eyeshadows. It works by absorbing excess moisture to prevent clumping, adjusting product thickness for better stability, and creating an opaque appearance that hides imperfections. This ingredient also modifies slip, allowing smoother gliding during application without greasiness. Commonly used at low levels, it contributes to uniform texture and improved handling in both loose and pressed formulations, supporting overall product performance across makeup categories.

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.
Slip modifier
Improves the spreadability and glide of products on skin.
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 uniformity by absorbing moisture and preventing clumps.

Enhances spreadability for effortless application on skin.

Controls thickness to ensure stable, user-friendly texture.

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 powder makeup seeking smooth, clump-free application.
People with rare allergies to fatty acid salts.
Individuals preferring products with improved glide and flow.
Those sensitive to magnesium compounds.
Those desiring stable formulations in foundations or blushes.
Users preferring fully anhydrous product types.

Safety Notes

  • Rated low hazard by EWG with minimal health concerns.
  • Deemed safe for cosmetic use by Cosmetic Ingredient Review.

Frequently Asked Questions about Magnesium Myristate

What is Magnesium Myristate used for in cosmetics?

It acts to prevent powder clumping, enhance spreadability, and adjust thickness for better product performance.

Is Magnesium Myristate safe for skin?

Yes, it carries a low EWG rating and is considered safe by regulatory reviews for cosmetic use.

Does it clog pores?

No, with a comedogenic rating of 0, it is unlikely to contribute to pore blockage.