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

KURUMI KAKU

Walnut Shell Powder

Safety grade: A

A finely ground powder made from crushed walnut shells. It's a natural, gritty material that gently removes dead skin cells and debris from the skin's surface.

This abrasive ingredient is used in scrubs and exfoliating products to physically remove dead skin cells and unclog pores, leaving skin smoother and brighter.

Graded using: COSING.

Last verified: May 26, 2026