Pure Lab Vitamins Vitamin C Powder, 500mg per Scoop, Corn Free Tapioca Source, Antioxidant Support, 250g Focus and Concentration B12 is water soluble and the B12 is water soluble and the excess is passed in urine rather than stored up from a daily dose Glutamine is arguably the key "recovery amino" as it (A) helps boost the immune system (B) helps to reduce the symptoms of overtraining syndrome (C) plays a role in enhancing glycogen synthesis (D) stimulates muscle protein synthesis for the rebuilding of lean muscle tissue Adolescents 9 to 13: take 1 level scoop once or twice a day The powder is mixed into a drink you finish right away