Magnesium Carbonate

Magnesium Carbonate

AKA “Magnesite, Magnesium carbonate anhydrous, Kimboshi, Magmaster, Apolda, Carbonic acid, magnesium salt (1:1), Destab”

Synthetic

Ingredient Facts

Magnesium carbonate

AKA: Magnesite, Magnesium carbonate anhydrous, Kimboshi, Magmaster, Apolda, Carbonic acid, Magnesium salt (1:1), Destab

Synthetic · Binding · EWG: 4

Synthetic

Colorant

Synthetic

Clean

A mineral powder that absorbs oil and moisture while creating a smooth, blurred finish. It helps set makeup and gives products a light, weightless feel.

Solubility 0.01 % (NIOSH, 2024)

Formula

CMgO3

Mol. Weight

84.31

CAS #

546-93-0, 7757-69-9

Form

Powder

State

Magnesite appears as white, yellowish, grayish-white or brown crystalline solid or crystalline powder. Density: 3-3.1 g cm-3. An important ore for magnesium. Used in the manufacture of materials capab

See origin →

Functions

Absorbent

Binding

Bulking

Colorant

Gives the product its color. Purely aesthetic — makes the formula look good in the jar but does nothing for your skin.

Opacifying

Moisturizing

Locks in moisture to keep skin soft and supple throughout the day

Brightening

Evens out dull skin tone for a more radiant, lit-from-within look

Fights Acne

Traditional Use

Used historically as a powder base and absorbent in traditional cosmetics and toiletries; mined and refined for modern skincare products where it functions as a brightening and oil-absorbing agent.