Here are some Iâve found on the subject of art and art history. â 1  Art is not what you see, but what you make others seeâ -Edgar Degas. â 2 Painting is poetry that is seen rather than felt, and poetry is painting that is felt rather than seenâ â Leonardo Da Vinci.
Other forms of vitamin B 3 include the corresponding amide and nicotinamide (niacinamide), where the carboxyl group has been replaced by a carboxamide group (CONH 2), as well as more complex amides and a variety of esters.
Posted by Sharmani on December 17th, 2008. Also called niacinamide, vitamin B3 is one of several topical vitamins that has been studied in order to identify its potential benefit to the skin. A lot of ingredients have disappointed dermatologists due to low efficacy in treating various skin problems.ow Vitamin B3 Helps Your Skin. There are 2 important enzymes (NADH and NADPH) that contribute to the production of cellular energy and lipids (responsible for cell growth). With a sufficient supply of both enzymes, your skin creates an effective barrier to external factors that influence the aging process.