Niancinamide

Also called nicotinamide, is a form of vitamin B3. 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, help retain moisture. Researchers found Niacinamide is an important ingredient in skin lightening, which works to stop the transfer of melanin pigment (responsible for the darkening of the skin) to skin cells (keratinocyte). Niacinamide decreases hyperpigmentation and lightens skin gradually after using it for a long duration.