Nicotinamide is not a vitamin, but it is closely related to vitamins. Nicotinamide is a derivative of vitamin B3, a component of Coenzyme I and Coenzyme II, and a coenzyme of many dehydrogenases. When the human body is deficient in nicotinamide, the normal respiration and metabolism of cells will be affected, and pellagra can be caused. However, nicotinamide can be used as a nutritional additive in cosmetics, as well as in medicine, food, and feed additives.
Nicotinamide can play a role in anti-glycation, and protein glycation yellow can play a role in fading, therefore, nicotinamide can whiten the skin, especially for people with dark yellow skin. In addition, nicotinamide can also reduce the transport of melanin to the cuticle of the skin and reduce the deposition of melanin in the cuticle, thus preventing the skin from darkening. That is to say, nicotinamide is mainly through it can inhibit the deposition of melanin, block the transfer of melanin to the surface cells, accelerate the shedding of keratin containing melanin, fade the yellowing of protein glycosylation, reduce the size and number of spots, achieve a whitening effect.
Nicotinamide can promote microcirculation in the dermis, maintain the moisture content of the skin and reduce the damage of free radicals to the skin. Therefore, nicotinamide can slow down skin aging, enhance skin defense, and is widely used in anti-aging skin care products.