Dr. Barbara Sturm The Better B Niacinamide Serum, 30 ml, Skin Serums for Women, The Dr. Barbara Sturm The Better B face serum is a product full of active ingredients, meaning it provides absolutely luxurious care for your skin. Characteristics: tightens enlarged pores works on blemishes has a soothing effect How to use: Dab an appropriate amount of the serum gently into clean skin with your fingertips. Apply to the face, neck and chest.