Face Masks for Acne, Scars, Pigmentation, Skin Whitening, and WrinklesMultani Mitti is a clay substance popular for its cleansing and astringent properties, excellent face mask for acne-prone skin and will reduce pimples as well as reduce their scars. Also tighten pores and effective for reducing the occurrence of blackheads and whiteheads. Used regularly will also leave healthy glowing skin. Direction: Mix 1tbsp of Multani Mitti with 1tbsp rose water to form a smooth paste. Apply to the face skin leaving area around the eyes. Leave it on for 15-20 minutes or until completely dry. Rinse off with warm water.