An exfoliator is a gentle abrasive that is used with water to remove dead skin cells. For someone with problematic skin who is using Retin A, it is imperative to use once a week because of the flaking skin. Underneath will be a softer, smoother skin tone. Be sure to remove thoroughly with warm water. Try a body exfoliator, use 1-2 times a week in the shower. Your skin will love you for it!