Niacinamide helps build keratin Source, a type of protein that keeps your skin firm and healthy. Niacinamide can help your skin grow a ceramide (lipid) barrier, which can help to retain moisture. This is beneficial for all skin types, especially if you have eczema or mature skin. Minimizes redness and blotchiness. Niacinamide reduces inflammation, which may help to reduce acne, and other inflammatory skin conditions. Minimizes pore appearance by keeping skin smooth and moisturized. The benefits of moisture retention aren’t just for those with dry skin types. Niacinimide can also help regulate the amount of oil the sebaceous glands produce and prevent your glands from going into overdrive. Niacinamide can concurrently rebuild healthy skin cells while also protecting them from damage caused by ultraviolet rays.