Oral VITAMIN C is Dr. Za'Ndra's FAVORITE vitamin for GREAT LOOKING SKIN. Vitamin C is an anti-oxidant which helps the body to produce COLLAGEN, which is necessary for healthy skin. When collagen levels are reduced, the result is wrinkled skin. Studies have shown the benefits of VITAMIN C on skin. Taking Vitamin C orally allows the Vitamin C to be delivered to the DERMIS layer of the skin, since this layer of skin is full of blood vessels. The dermis is also the layer of skin that contains collagen.