How does walnut shell powder exfoliate without being too harsh?

Juglans Regia walnut shell powder is a naturally derived physical exfoliant with a soft, rounded particle structure that buffs the skin’s surface without the jagged edges that can cause micro-abrasion with harsher exfoliants. As the soap is lathered onto wet skin, the walnut powder particles work in tandem with the lather to gently slough away dead skin cells from the surface, smoothing rough patches on areas like elbows, heels, and knees as well as general body and facial skin. The glycerin in the formula simultaneously draws moisture into the skin during the cleansing process, which helps prevent the dry, tight sensation that some exfoliating soaps can cause. The result is exfoliation that improves texture and radiance without leaving skin feeling stripped or sensitized after rinsing.