Immune support c-x is a complex formula designed to take when your body is stressed. It"s based on scientifically proven micronutrients, one of the most popular and abundant amino acids, and a great plant extract. Magnesium contributes to: normal protein synthesis, normal functioning of the nervous system (neurotransmission and muscle contraction including heart muscle), reduction of tiredness/fatigue, normal energy-yielding metabolism and electrolyte balance*. Vitamin c helps to protect cells from oxidative stress and contributes to normal collagen formation for the normal function of cartilages, bones, blood vessels, gums, teeth and skin*. Vitamin c also contributes to maintain the normal function of the immune system during and after intense physical exercise (the beneficial effect is obtained with a daily intake of 200 mg in addition to the recommended daily intake of vitamin c)!* * these statements have been scientifically proven and authorized by the european food safety authority.