Does anyone use this for their dog. I am wondering if it would help mine

Used them on several dogs, seems to be that either they work really well or have no effect at all - just depends on the dog
They used to have a policy that if you weren't happy you could return for a refund after (I think) 30 days, not sure if that still applies but if it doesn't make a difference in about 2 weeks it never will so you could get your money back.

I used it on a dog with spondylosis and it worked a treat for about a year. So worth a try

On the other hand it had very little effect on the other dog who didn’t have spondylosis, she was just a bit arthritic