The most highly bio-available form of Vitamin C, Rare C Serum is brilliantly skilled at strengthening collagen, brightening the complexion and, as an added bonus, it’s able to reduce the appearance of pore size by 20% in just four weeks! This serum also fights against aging, protects against environmental damage and helps repair collagen and elastin integrity. When used regularly, Rare C Serum will promote and enhance supremely radiant, strong, and youthful looking skin. A vitamin C product is as rare and significant as the skin!