We know Vitamin C is necessary for fighting the common cold, but it wasn’t until recently that we started slathering it all over our faces, too. Why you ask? Well, according to a study by Oregon State University, it’s basically the holy grail of anti-aging products thanks to its ability to help reverse UV- and environmental-induced photodamage. When applied topically to skin, it enhances collagen synthesis to bring back youth in the form of a brighter, firmer, more glowy complexion. Intrigued? We got you. Here are three all-star products at every price point.