Walnut Shell Powder

A ground-nutshell physical exfoliant whose jagged, irregular particle edges can create tiny skin abrasions if scrubbed hard or too often, more a technique issue than a toxicity one. Dermatology commentary has pointed to this shape (versus rounder synthetic or sugar granules) as the reason some users report micro-tears with vigorous use.

Cosmetic information for general education, not medical advice. A verdict is a reading of the published evidence, never a guarantee for your skin: any ingredient can irritate someone, so patch test new products and see a professional if you react. Concern is graded on cited evidence, never on hazard-score lists. See how we score.