Vitamin C limits the damage induced by ultraviolet (UV) light exposure. Vitamin C is not a “sunscreen” because it does not absorb light in the UVA or UVB spectrum. Rather, the antioxidant activity of vitamin C protects against UV-induced damage caused by free radicals. Vitamin C transport proteins are increased in keratinocytes in response to UV light, suggesting an increased need for vitamin C uptake for adequate protection
Posted on: Thu, 13 Jun 2013 02:20:53 +0000