Optimal Defense utilize a multi prong approach to building and boosting your immune system. Optimal Defense is the most powerful immune booster available. Some of the most powerful ingredients contained in Optimal Defense included colostrum, echinacea, beta glucan, and DDS-1 lactobacillus acidophilus. These ingredients have been proven to help support and strengthen the body’s own immune system. Colostrum has many benefits from the contents of immune supporting nutrients. And growth factors that protects the mucous lining of the throat, lungs, and intestines and ward off viruses, fungus, and bacteria that enter the body.