ALUMINA is graded A** (Safe) by Expert·ING, based on COSING, FDA regulatory data.

ALUMINA

Aluminum Oxide

Safety grade: A**

Alumina is a fine, white powder made from aluminum oxide. It's a mineral that's naturally found in bauxite ore and is commonly used in many everyday products.

Alumina works in cosmetics as a gentle abrasive to smooth skin, absorbs excess oils and moisture, prevents clumping in powders, adds thickness to products, and makes formulations opaque or less see-through.

Graded using: COSING, FDA.

Last verified: May 26, 2026