PreCleanse Balm is “step zero” in Dermalogica’s exclusive Double Cleanse technique, the Dermalogica skin therapist’s go-to method for achieving ultra-clean, healthy skin. The skin accumulates quite a bit of “dirt” on a daily basis. Environmental pollutants in the air, as well as cosmetics such as sunscreen and waterproof makeup, combine daily with the skin’s naturally sticky sebum secretions to form a thick, slick, waxy coating on the skin by the middle of the day.