We have just got this for our 13 year old shar pei bull terrier cross. He has been feeling his bones as my mum would say he took a bit to get moving in the morning and had stopped climbing up on my partners lap (when he was sitting in a chair) for a cuddle and we built a step to help him get up on the bed as he couldn't jump up anymore. He has been on RHV for 9 days and has been running around the house having zoomies (which he hadn't done for months) and now climbing up in his dads lap once again. I am now waiting to see him jump up on the bed without using his step!! Thanks RHV.