Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Great Product!

Has made a huge difference in both my Lab mix, 5 y/o 80 lbs and my Shepherd mix 9 y/o and 90 lbsTook about one month before we noticed a change. Older dog is running and jumping again and not having as hard of a time getting up and down.Younger one has bilateral hip dysplasia. She seems to be moving a lot better, with much more ease.Both love the flavor. All I have to do is rattle the bottle.Will continue to use.