Vitamin cr contributes to the normal function of the immune systemr contributes to normal function of the nervous systemr contributes to normal energy yielding metabolismr r for generations haliborange has been a delicious way of adding to the bodys supply of vitamin c effectively and easily bursting with the flavour of sunshine orange haliborange effervescent vitamin c drink is a delicious way of providing the body with a daily contribution towards the normal function of the immune system