Liquid Collagen + Vitamin C + Hyaluronic Acid, Mango - 500 Ml.Liquid collagen, and hyaluronic acid, Vitamin B6 and Vitamin C containing foodstuff for athletes with sweeteners. Vitamin B6 contributes to normal energy yielding metabolism, the reduction of tiredness and fatigue and the normal function of the immune system. Vitamin C contributes to normal collagen formation. normal function of blood vessels normal function of bones normal function of cartilage normal function of gums