We took on the cat who lived at a house we bought. He's 16 and at the time, slept all the time, wasn't very mobile, with a limp, was scabby and his fur was falling out. We took him to the vet and was advised he was old, had an allergy to flea saliva and had arthritis. The vet said he wasn't in any pain, even with a swollen paw, so was reluctant to give him anything but Spot-On to sort out his skin problem.
Feeling very sad and wanting to help him, we came home and did a little research and Vetzyme seemed to get very good reviews, so thought we would give it a try. He has been taking it since July last year and oh my goodness, what a difference. With a change of diet, a bit of love and care and Vetzyme, he is a completely different cat. He still has his limp, but he can sit down fully to eat, get up and stretch no problem, he seems to have more energy and charges about the place at a good speed for his condition! He has even become playful, which is a joy to see! His eyes are bright, his fur has grown back and is black and shiny, rather than a dull brownish colour and he meows every morning for his biscuits with his 'medicine', of which he is allowed to lick the residue off the spoon - the best bit he tells me!
If you have an cat or dog with mobility/joint issues, I would strongly recommend you try this product.
I will say though, having bought it regularly, I am disappointed the price has gone up considerably since first purchasing!