Applying vitamin C topically to your skin each day benefits skin in two important ways. Firstly, vitamin C is essential for the synthesis of collagen, a key structural protein of the skin. Adding vitamin C to a culture of skin cells (fibroblasts) dramatically increases the synthesis of collagen. Secondly, vitamin C is an antioxidant and can help reduce skin damage caused by free radicals. So, when vitamin C is properly delivered into skin cells, there is a good chance to reduce wrinkles and improve skin texture.