I just wanted to let you know the benefits we were looking for in a C60 product for our 13-year-old miniature rat terrier have been realized with C60 Evo for Dogs! In the past we had tried another pet version of C60 and it did not do anything. Shortly after we started dosing him with C60 Evo for Dogs in December he started being much more active and his hip doesn’t bother him as much. He also started playing with his sister again which he hadn't done in quite some time. She is a younger dog and now he is running around and humping her like crazy even though he doesn't have the equipment to do any damage Hahahaha.