Sugar Granules Are Rounder And Less Abrasive Than Salt, Making Them A Gentler Exfoliant. As A Natural Source Of Glycolic Acid (An AHA), Sugar Breaks Down Layers Of Dead Skin And Smooths The Skin's Surface. It Also Promotes Rehydration, Keeping Skin Conditioned And Moisturized. For This Reason, Sugar Scrubs Are A Fantastic Choice For Dry And Dehydrated Skin Types.