California Gold NutritionImmune 4 Immune System Support* Contains 4 key ingredients: Vitamin C, Vitamin D, Zinc and Selenium. Shield Your Immune System with Clinically Studied Vitamins & Minerals* Produced in a 3rd Party Audited cGMP Registered (Certified) Facility Formulated to Contain: No Gluten, No GMOs, No Soy 100% Gold Guarantee California Gold Nutrition Immune 4 helps to shield your health by providing extra immune support when you need it the most. It is formulated with a combination of four clinically studied Vitamins and Minerals to help promote a healthy immune system.*

Vitamin C - An antioxidant that enhances white blood cell functions and the body's own production of immune enhancing compounds known to help fight off viruses and bacteria.*

Vitamin D - Plays a critical role in enhancing the immune system response when it is challenged, and may help to protect against respiratory infections.*

Zinc - When zinc levels are low, overall immune function plummets, especially white blood cell activity critical in fighting off invading bacteria and viruses.*

Selenium - Plays an essential role in strengthening immune health, especially the function of the thymus gland, the "master control" of the immune system.*