Ingredient review

Aluminum Dimyristate

INCI: Aluminum Dimyristate

A safe, synthetic thickener and opacifier that improves product texture and stability without major skin concerns.

beautyskincarecosmetic

In plain English

Aluminum Dimyristate is a man-made ingredient that helps give cosmetics a smooth, creamy texture. It thickens formulas, makes them look opaque instead of clear, and helps keep powders and creams from separating. Think of it as a helper that makes your foundation or lotion feel nice and stay mixed together.

Quick decision guide

Useful, but context matters

Aluminum Dimyristate is generally a lower-concern ingredient when the full formula suits your skin.

Plain-English read

Treat this as a practical screening step before you compare products that contain this ingredient.

  1. Step 1Start with the score, then check the irritation and clogging risk before judging Aluminum Dimyristate.
  2. Step 2Use the "Best for" and "Use caution if" sections to match the ingredient to your skin, not just to a marketing claim.
  3. Step 3If a product stings, breaks you out, or worsens irritation, judge the finished formula and stop using it even if the ingredient scores well.

Score terms in plain English

Irritation risk

low

Less likely to sting, burn, or bother most users, though sensitive skin can still react.

Clogging risk

low

Less likely to feel heavy or contribute to clogged pores for most skin types.

Evidence level

moderate

There is useful support, but formula details and claim strength still matter.

What it is

Aluminum Dimyristate is a synthetic aluminum salt of myristic acid, a fatty acid found naturally in nutmeg and other plants. It is produced in a lab and used primarily as a thickener and opacifier in cosmetics.

How it works

In a cosmetic product, Aluminum Dimyristate works by forming a network of tiny particles that increase the viscosity (thickness) of the formula. It also scatters light, making the product appear opaque or pearlescent. This helps create a uniform, creamy texture that spreads easily and feels smooth on the skin.

Pros

Improves texture

Creates a smooth, creamy feel in foundations and lipsticks, making application easier and more pleasant.

Stabilizes formulas

Helps keep emulsions and powders from separating, so your product stays consistent from first use to last.

Cons and cautions

Synthetic origin

Not derived from natural sources, which may be a drawback for those seeking plant-based or naturally-derived cosmetics.

Limited long-term data

While generally considered safe, there is less research on the effects of repeated skin exposure over many years compared to some other thickeners.

Best for

  • Anyone using color cosmetics like foundation or lipstick
  • People who prefer products with a smooth, creamy texture

Use caution if

  • Those strictly avoiding all synthetic ingredients
  • Individuals with known sensitivity to aluminum compounds (rare)

Usage tips

Check the ingredient list if you prefer natural or plant-derived thickeners
Use as directed in color cosmetics; no special precautions needed for typical use

Safety summary

Aluminum Dimyristate is considered safe for use in cosmetics at typical concentrations. It has low irritation and comedogenic potential, and is not associated with significant health risks. However, those with very sensitive skin or a preference for natural ingredients may choose to avoid it.

Research notes

Safety assessments by the Cosmetic Ingredient Review (CIR) panel have concluded that aluminum dimyristate is safe as used in cosmetics. Studies indicate low acute toxicity and no significant skin irritation or sensitization. Long-term absorption data are limited, but no adverse effects have been reported in typical use.

Common label clues

Typical concentration
0.5% to 5%
Regulatory status
Approved for use in cosmetics in the US (FDA) and EU (CosIng) with no specific concentration restrictions, though general safety standards apply.
Common uses
Foundations, Concealers, Lipsticks, Creams, Lotions
Environmental note
As a synthetic compound, its environmental persistence is not well-documented, but it is not known to be a major concern in typical cosmetic use.

Good to know

  • Aluminum Dimyristate is not the same as aluminum salts used in antiperspirants; it is a different compound with a different safety profile.
  • It is often used alongside other thickeners like silica or waxes to achieve the desired texture.

Common questions

What is Aluminum Dimyristate in beauty products?

Aluminum Dimyristate is a man-made ingredient that helps give cosmetics a smooth, creamy texture. It thickens formulas, makes them look opaque instead of clear, and helps keep powders and creams from separating. Think of it as a helper that makes your foundation or lotion feel nice and stay mixed together.

What does Aluminum Dimyristate do in a beauty product?

In a cosmetic product, Aluminum Dimyristate works by forming a network of tiny particles that increase the viscosity (thickness) of the formula. It also scatters light, making the product appear opaque or pearlescent. This helps create a uniform, creamy texture that spreads easily and feels smooth on the skin.

Is Aluminum Dimyristate safe for most people?

Aluminum Dimyristate is considered safe for use in cosmetics at typical concentrations. It has low irritation and comedogenic potential, and is not associated with significant health risks. However, those with very sensitive skin or a preference for natural ingredients may choose to avoid it.

Who should be careful with Aluminum Dimyristate?

Those strictly avoiding all synthetic ingredients Individuals with known sensitivity to aluminum compounds (rare)

Research sources

Cosmetic Ingredient Review (CIR) Safety AssessmentOpenEuropean Chemicals Agency (ECHA) InformationOpenFDA Cosmetics Ingredient DirectoryOpen

Ingredient reviews are educational and are not medical advice. Patch test new products and ask a licensed clinician about persistent irritation, allergies, pregnancy-specific questions, or diagnosed skin conditions.