Advancis® Vitamin C + Vitamin D is a food supplement, with a formula created with a set of nutrients recognized for their benefits. The formula contains vitamins C and D, having been reinforced with zinc, selenium and vitamin B6, elements that contribute to the normal functioning of the immune system. In addition, vitamin C and vitamin B6 also help to reduce tiredness and fatigue and contribute to normal energy-yielding metabolism. Zinc and vitamin C also contribute to the protection of cells against undesirable oxidation.