Dull skin is not always about complexion. Sometimes, the skin looks tired because it is dry, rough, uneven, or unable to retain moisture. When this happens on the body, areas like the arms, legs, elbows, knees, and shoulders can start looking flat, patchy, or less smooth. For this reason, Vitamin B3 body oil has become a useful step in body care for people who want softer, brighter-looking...