NV NIACINAMIDENiacinamide, also known as nicotinamide, is the active form of vitamin B3, which is water soluble. It has several biological effects, as it is essentially involved in metabolism, trans cription processes and DNA synthesis regula tion. This vitamin is essential in cellular energy supply, acts as a precursor of the coenzymes NADH and NADPH, and is thus involved in more than 200 enzymatic reactions in the body, including ATP3 forma tion. When topically