This supplement really works. My dog blood work came back and he had slightly elevated liver enzymes. The next blood test a couple months later they went up some more. Then a couple months later up some more they went which was getting me nervous with his age. My Vet wanted me to try this, but gave me the chewable soft bites which got hard as rocks as they were packaged very poor. I got some from Amazon to replace those due to them being much cheaper and just getting them they were hard as rocks, so went with these.Now to the good news.... Giving him these at the proper amount for his weight he went in for his 4th blood test and I was hoping that their was no elevation, stayed the same, or went down. To my surprise I was told that his liver enzymes were now perfect just like any other dog. That was a complete shocker and I continue to give him these to keep his liver enzymes down.He did need and the one he could not be put on due to his liver enzymes being elevated because it would elevate them more. He is now on that medication and with this product they are now just back to slightly elevated.I read the reviews on this and they were all great and some even said prescription medications that are supposed to lower liver enzymes in dogs did not work and this did.This stuff works and get the tablets and stay away from the soft bites due to they turn into rocks due to the way they are packaged and dry out. I found out a lot of Vet's do not know a lot about supplements and nutrition due to they never learned about it, but mine did and said try this product.It worked for my dog and I hope if your dog has elevated liver enzymes it works for yours too like I read on so many reviews that it does. This is not a gimmick supplement by what they say and I can attest to that it really does work.