We love your questions, and know you have a LOT of them. So to help address some of them, we're introducing a brand new series... #IngredientSpotlight! We'll be filling you in on the what, how and why of some of our favorite powerhouse DE ingredients. First up? L-Ascorbic Acid.
There are many types of vitamin C, but l-ascorbic acid is the only form that is naturally present in skin, with 30+ years of research specific to its benefits for skin, which is why it has long been referred to as "the gold standard." Ascorbic acid is the only *active* form of vitamin C in skin, which means that all other types require extra work to convert them into ascorbic acid before they can begin to do any good—a process that filters away some of their benefits. If your vitamin C products don’t contain pure, stabilized ascorbic acid, you don’t know for sure what concentrations are actually reaching your skin. As skin’s only active form of vitamin C, ascorbic acid is our most powerful defense against environmental free-radical damage. Skin reaches its peak reservoir of vitamin C after three consecutive days of applying a 15% concentration of ascorbic acid—that’s the reservoir effect we’re always talking about. Guess what? Ascorbic acid is the only form of vitamin C that contributes to this reservoir effect, and only at concentrations of 15% to 20%. It’s true that ascorbic acid is notoriously difficult to stabilize, but decades of research has shown that the rewards are worth the effort. We think your skin deserves *only* the best, most well-researched ingredients available today. That’s why we worked so hard to develop #CFirma using stabilized 15% ascorbic acid, blended with multiple antioxidants and soothing agents.