According to Dr. Dressler, the 4Life brand is a wonderful alternative to the products produced by Aloha Medicinals. The 4Life Transfer Factor Plus Tri-Factor Formula is a great alternative to K9 Immunity Plus, which is both a beta-glucan supplement and trasnfer factor supplement.
Your veterinarian or holistic vet will be able to tell you if this product would be the right fit for your dog, based on their current health plan.
We hope this helps and makes a wonderful alternative! :-)