C-immune? is a high-dose vitamin C tablet. Vitamin C helps maintain the normal function of the immune system during and after intense physical exercise*. Vitamin C is an antioxidant that protects cells, DNA, proteins and lipids from oxidative damage. Vitamin C is also important for normal formation of collagen, which is important for normal skin. *The beneficial effect is achieved by a daily intake of 200 mg in addition to the recommended daily vitamin C intake.