An inorganic magnesium salt used as an absorbent, filler and colorant, regulated in Annex IV.
What it is
Magnesium carbonate is an inorganic magnesium salt; according to CosIng the raw material may be a basic or a normal hydrated magnesium carbonate. CosIng lists it as an absorbent, binding, bulking, colorant and opacifying ingredient. As a colorant (CI 77713) it is listed in Annex IV (colorants) in the EU.
Where it is used
Found in face powders, dry shampoos, makeup, deodorants and toothpastes.
Limits of interpretation
The INCI list shows which ingredients are present, not how much of each. Above 1%, ingredients are listed in descending order of weight; below 1% the order is free.
See the EU regulation section for the applicable conditions. According to CosIng, when it is used as a colorant it must be labelled as CI 77713.
Functions
- Absorbent
- Taking up water- and/or oil-soluble (dissolved or finely dispersed) substances.
- Binding
- Providing adhesive properties during and after compression in cosmetic tablets and/or cakes.
- Bulking
- Non-reactive (chemically inert), solid ingredients that dilute other solids and/or increase the volume of cosmetic products.
- Colorant
- Exclusively or mainly intended to colour the cosmetic product, the body as a whole or certain parts thereof, by absorption or reflection of visible light; (precursors of oxidative hair colorants shall be deemed colorants). All authorised colorants are substances in the positive list of Annex IV to the Cosmetics Regulation 1223/2009.
- Opacifying
- Reducing transparency or translucency of cosmetics.
EU regulation
- As of
- 3 November 2026 · (EC) 2009/1223
Products with this ingredient (26)
- The Blushed Nudes® · Maybelline
- Brass Off Shampoo · Matrix
- The No Compromise Matte Longwear Powder – Neutral Deep · IsaDora
- The No Compromise Matte Longwear Powder – Neutral Tan · IsaDora
- The No Compromise Matte Longwear Powder – Neutral Almond · IsaDora
- The No Compromise Matte Longwear Powder – Warm Tan · IsaDora
- The No Compromise Matte Longwear Powder – Warm Beige · IsaDora
- The No Compromise Matte Longwear Powder – Neutral Beige · IsaDora
- The No Compromise Matte Longwear Powder – Cool Ivory · IsaDora
- The No Compromise Matte Longwear Powder – Neutral Porcelain · IsaDora
- COMPLEXION RESCUE® Luminous Skin Tint Stick · bareMinerals
- Threads of Time Flex It Up Loose Powder 03 · KIKO Milano