SUPPORT HEALTHY SKIN, BONES & JOINTS When our immune system is needing help, the first supplement we turn to is Vitamin C. Vitamin C is a water soluble nutrient that is well known for being essential for a healthy immune system. It is also a powerful antioxidant that can help protect our body's from harmful free radicals. To enhance Vitamin C we added Zinc to further help boost your immune system, giving you a powerful one, two punch.