When it comes to immune support, ingredients matter. 4Life Transfer Factor® Immune Boost delivers more than Vitamin C it includes 1,000 mg of our signature Transfer Factor®, plus Vitamin D, electrolytes, and a delicious orange flavor. Choose smarter. Feel stronger. 💙 #4LifeImmuneBoost #BuiltOnScience #4Life #DailyDose #4Life #VitaminC *This statement has not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.