This serum is made with concentrates of active ingredients to effectively improve oily and acneic skin. Its natural ingredients such as arbutin, zinc and salicylic acid help to quickly purify and decongest the skin giving a feeling of calm and softness. Its main objective is to normalize and effectively balance the problems in the face and neck. Valquer Bullon Purifying Serum Valquer Bullon Purifying Serum should be applied on clean skin previously, massaging gently on the face and neck making circular movements and upward. It is ideal to place it before bedtime and leave it on all night. Please keep in a cool, dry place, away from light. Please keep out of reach of children. Read carefully the instructions for use. Do not apply to people who are sensitive to its components.