Contain Vitamin C and zinc . Vitamin C helps to protect the immune system, protects the body from infections, treats cold and flu symptoms and it promotes heart and cardiovascular health. Vitamin C is a potent antioxidant that helps to protect the cell from oxidative damage. Zinc helps to strengthen immunity and protects the body from viruses and diseases. non-GMO, gluten- and sugar-free, and contain no artificial colors, or sweeteners.