Niacinamide 10% +Hyaluronic acid 2% in the fermented rice water serum for Pore tightening, Brightening, Hydrating, Acne, Plumping 1oz Ingredients: Distilled water, Fermented rice+barley+ginger water, Hyaluronic acid, Niacinamide, glycerin, liquid germall plus This simple yet powerful serum is thick, transparent liquid without scent. What benefits does [niacinamide] offer? Overall, niacinamide can help build proteins in the skin and lock in moisture to prevent environmental damage. Individual benefits include: Immunity. Niacinamide helps build keratin, a type of protein that keeps your skin firm and healthy. Lipid barrier. Niacinamide can help your skin grow a ceramide (lipid) barrier, which can, in turn, helps retain moisture.