Good antioxidant important for maintaining the immune system and is beneficial for the symptoms of colds, infections and allergies.ProLife – VITAMIN C + ZINC + Selen + Vitamin D3It’s a Comprehensive Immune Support that serves as an immune boost, super charges your immune system & health with rapidly dissolving Vitamin C + D3 + Zinc & Selenium. This powerful, Quadruplet defense formula includes 100% pharmaceutical grade vitamin C, vitamin D, Selenium & Zinc making this an immune support supplement your overall health.