The #1 dermatologist recommended vitamin C serum among medical aesthetic skincare brands, this daytime vitamin C serum for the face that delivers advanced environmental protection and clinically improves the 8 signs of aging, including the appearance of fine lines and wrinkles, discoloration, loss of firmness, and brightness on all skin tones. Clinically proven to reduce up to 48% of potential damage from free radicals formed by pollution, the sun, and metals for up to 8x stronger skin against environmental aggressors.