Immune system support. Wellmune, elderberry, acerola cherry & zinc. The Goods Inside: Wellmune: These beta glucans help promote built-in immune support mechanisms. Elderberry: Respect your elders - this super food has been used for centuries to support the immune system. Acerola Cherry: One of nature's richest sources of vitamin C. Zinc: An essential mineral that helps keep immune cells functioning in tip-top shape. Contents certified NSF. Certified B Corporation.