Dr. Barbara Sturm Hyaluronic Serum Darker Skin Tones, 30 ml, Skin Serums for Women, The Dr. Barbara Sturm Hyaluronic Serum face serum is a product full of active ingredients, meaning it provides absolutely luxurious care for your skin. Characteristics: helps to smooth out wrinkles and fine lines improves skin density restores skin elasticity restores freshness and youthful beauty to your skin helps remove signs of skin ageing