What it is: Just one drop of this world-famous Drying Lotion on a surface pimple or whitehead will heal and dry a zit virtually overnight. Who it's for: Suitable for all skin types. What it does: Mario Badescu's best-selling, concentrated formulation of calamine, salicylic acid and quick-acting acne-zapping ingredients should be part of everyone's clear-skin arsenal. How to use: At night after cleansing, toning and moisturizing, apply a dab of lotion directly on the whitehead using a cotton swab. Do not rub in. Let it dry and rinse off in the morning.