Walnut shells being fibrous and hard are basically abrasive; and thus is a natural exfoliant. But, walnut scrub is made of very finely powdered walnut shells. This makes the scrub both effective, and gentle enough for our skin. Effective as the angular, multi-faceted particles, retain the abrasiveness of their source; and gentle because of the fine size of each particle. Walnut scrub helps rid the skin’s surface off accumulated dead cells; as well as clear other impurities that are not effectively removed by regular cleansers. It thus compensates for the skin’s slacking natural exfoliation process; gently smoothening and brightening the skin.