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

SCHIST

Safety grade: A

Schist is a natural stone composed of layers of minerals like mica and quartz. It's a rough, grainy material that comes from the earth.

This ingredient works as a gentle physical exfoliant to remove dead skin cells and smooth the skin's surface.

Graded using: COSING.

Last verified: May 26, 2026

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