Magnesium Carbonate

Magnesium carbonate is an inorganic mineral powder used in cosmetics and personal care as an absorbent, opacifier, and bulking material, chosen for oil control, a soft-focus appearance, improved glide, and as a carrier in pressed or loose powders.
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Ingredient Snapshot

Overview
A mineral powder that controls shine and blurs the look of pores.
Category
Oil Control, Tone/Texture, Color
Type
Mineral

Ingredient Ratings

Overall Rating

Good

Comedogenic Risk

None

Skin Benefits

Helps curb surface shine and subtly blurs the look of pores for a smoother-looking complexion, and can improve makeup wear by boosting adherence and reducing slip.

Uses In Skincare & Cosmetics

Common in setting powders, mattifying primers, and dry shampoos to boost grip and reduce greasiness. Also appears in pressed blushes and bronzers to improve payoff and texture.

Comedogenic Rating

This ingredient is not typically evaluated for comedogenicity, and no standardized rating is available.

Safety

Generally low irritation risk when used topically; fine powders can be mildly drying and may irritate if they get into the eyes. Avoid inhaling loose powder during application.

Is Magnesium Carbonate a Good Ingredient?

It reliably absorbs excess oil and improves slip and opacity, with a stable, inert profile and typically low irritation, which earns it Good. Performance can turn drying if overused, so it suits oily areas best.