No 1 revitalizing serum 30 ml Nº 1 revitalizing serum 30 ml is a facial serum designed to help improve the appearance of skin by providing it with the nutrients it needs. It is formulated with natural ingredients such as Vitamin C, Hyaluronic Acid, and Peptides to help reduce fine lines and wrinkles, boost collagen production, and improve skin tone and texture. It also contains natural botanical extracts that help to reduce inflammation and soothe the skin.