Ouai Scalp and Body Scrub This foaming Ouai Scalp and Body Scrub ($38) removes dead skin cells from your scalp, unclogs follicles, and tackles product buildup when used as a hair prewash . . . but you can also use it all over your body. Image Source: sephora.com Ouai Scalp and Body Scrub $38 from sephora.com Buy Now