Aloha Medicinals - K9 Immunity Plus - Potent Immune Booster for Dogs up to 30 Pounds - 2 Packs of 30 Soft Chews K9 Immunity plus strengthens and balances your dogs immune system so the body recognizes and destroys damaged cells. K9 Immunity plus improves their bodys ability to overcome illness and helps protect them against future illness. K9 Immunity Plus is an intense immune-boosting daily supplement designed to provide maximum immune support for dogs nd it comes in a convenient, easy to administer form. In the past, the standard protocol required taking all three products separately: K9 Immunity, K9 Transfer Factors and K9 Omega. K9 Immunity Plus combines all three of these essential products into one convenient formula. 100% bioavailable for increased absorption  brewers yeast beta glucans average 5-10% bioavailability.