This powerful brightening face serum is infused with a potent, all-natural 20% vitamin C stabilized for maximum efficacy and tolerability. Composed of 99.9% ingredients of natural origin, this dark spot serum features ascorbyl tetraisopalmitate, an all-natural, oil-soluble form of vitamin C derived from green science. It helps defend against environmental skin aging and supports the body’s collagen synthesis to help firm skin.