Guinot exfoliants provide several important, essential functions. First, they remove the build up of dead skin cells from the surface of the skin, revealing healthy new skin beneath. This process alleviates cellular buildup and minimizes clogged pores, which can lead to acne. Guinot exfoliants also enhance cellular turnover rates, which diminish with age. Guinot offers two types of exfoliants - one mechanical and one biological. Both are equally effective and provide options for even the most sensitive skin.