Skin Prep–enzymatic cleansing foam is a new-skin effect face cleanser that removes make-up and pollution particles, promotes cell renewal, tightens pores and evens skin texture. Key Components Glycerin Citric Acid Indication For all skin types, particularly sensitive skin How To Use This make-up remover foam is used as the second step in the Skin Prep cleansing routine, after the perfecting cleansing oil or micellar solution and before the exfoliating cream. Apply the product on wet skin, massage for 30 seconds, then rinse.