Canna-Pet has helped my 14 year old, 90 lb pooch immensely with his arthritis & hip dysplasia. Of course old age & time will always pass, but since using Canna-pet his baseline range of mobility has hardly gone down. Some days he actually seems to maneuver better than he did a couple years ago. I hardly ever comment on product stuff but this has been an amazing help for Jayden & definitely helped us to have happier, longer years together. Thank you so much!