How old does my dog have to be to use Bully Max? Matthew Kinneman August 09, 2018 19:18 Updated Follow Bully Max is for all ages (7 weeks and older). It works for both puppies and adults. There is no age limit. Related articles What are the differences between Bully Max and Gorilla Max? What happens if I stop using Bully Max? Do I need to exercise my dog when using Bully Max? Is Bully Max Safe? Does Bully Max work for all breeds of dogs? Comments 0 comments Please sign in to leave a comment.