I first found Liquid-Vet at my local grocery store and decided to give it a try on my 12 y.o. Miniature Schnauzer. I ran out while hoping I would find it again at the place I originally bought it at. I could notice a difference in the few days she went without – she began having a harder time climbing the stairs in our house again. I ordered the 2nd bottle online and received it in a timely manner. I also give the joint formula to my 4 y.o. Miniature Schnauzer. I have used both the chicken and pot roast flavor and both are well loved!