I have to say that without this product my jack Russell would not be able to run and play like all the normal dogs do.My dog MC ios a very sweet boy with serious hip and joint issues,The small bottle is around $11 and the large is about $25 worth every last bit!3 years ago Mc was having trouble just walking or standing ,playing you couldn't touch him without him hurting and crying.I went to my local pet store and spoke to the woman and she said to try this product so I did,Its an all natural product that I give him a half cap 2x a day in his kibble and he has not had a true problem since!They also carry glucosapet which is great too!If you have a dog that has these problems its worth the $11 to try on your lil furperson I did and Mc and I are so greatful!