What does a vitamin C serum do? 'Vitamin C is a staple for so many skin concerns,' explains facialist Abigail James. 'It's an antioxidant, which means it can protect against free radical damage ...
calling it the gold-standard vitamin-C serum that’s suitable for all skin types. “I think it’s the best out there,” declares Howe. He says it has a light, nongreasy feel while still ...