Bentonite Clay

A naturally mined clay used in masks to absorb oil and give a tightening, drying feel. It is generally well tolerated on skin; the main real-world caution is sourcing, since unregulated raw clays have occasionally tested with elevated heavy metal content, so buying from a brand that tests each batch matters more than the ingredient itself.

Cosmetic information for general education, not medical advice. Concern is graded on cited evidence, never on hazard-score lists. See how we score.