Cross Vitamin Immunity combines three the most important elements for our body, i.e., vitamin C, D and zinc. Vitamin C is the essential building element of the immune system, also acting as an antioxidant. Responsible for the formation of collagen, necessary for blood vessels, healthy teeth and gums. The human body cannot create it and so it relies on its income from various sources. Vitamin D is vital for muscle and bone health. It has a positive effect on disorders of the immune system, which can prevent or even treat. t is an effective way to fight asthma, flu, diabetes or infections. Zinc offers various preventive effects, reduces the formation of inflammation and ensures the healthy development of children.