# Magnesium carbonate (1:1)

URL: https://app.greenveil.ai/ingredients/ingredient_cas_546_93_0
Categories: beauty, food, industrial, pharma
Functions: colorant, Absorbent, Binder, Dye, Filler, Flame retardant, Opacifer, Processing aids not otherwise specified, Stabilizing agent, aggregate, backing, pH regulating agent, sand
Identifier: 546-93-0

> Magnesium carbonate (1:1) is used as colorant / absorbent. Greenveil chemical-concern score: 25/100 — Minor concern based on regulatory listings.. Assessed from 6 sources.

## Safety assessment

- Chemical concern score: 25/100 — Minor concern based on regulatory listings.
- Confidence: 4
- Rationale: Magnesium carbonate is listed in Annex IV of the EU Cosmetics Regulation (EC) 1223/2009 (colorants allowed in cosmetic products).

## Regulatory status

- EU: allowed_listed — Annex IV of EU Cosmetics Regulation (EC) 1223/2009: colorants allowed in cosmetic products.
- US: commercial use observed — EPA CPDat observed this chemical in 738 composition records across product categories including Construction and building materials, Home maintenance, Furniture and furnishings. EPA CPDat classifies this chemical for functional uses including Absorbent, Dye, Opacifer.
- US: listed in openFDA substance — openFDA substance registry classifies this ingredient as chemical.

_Assessed by Greenveil._