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

PHONOLITE

Safety grade: A

Phonolite is a type of volcanic rock that is finely ground into a powder. It is a naturally occurring mineral that absorbs moisture and oils from the skin's surface.

This ingredient works as an absorbent to help soak up excess oil and moisture from the skin, making it useful in products designed to mattify or control shine.

Graded using: COSING.

Last verified: May 26, 2026