I bought this product at my vet for my hypo thyroid Belgian Sheperd for her dry coat. She hated taking them so I gave them to my 7 year old GS mix. After exercise he would limp on one of his front legs, sometimes his back leg. After vet visits, x-rays and a visit to the ortho vet without a difinite diagnosis of any leg or spine problem I gave him joint supplements from Trader Joes, but he still had limping and stiffness. After using AllerG-3 he does not limp. He still has some stiffness when waking up, but not like the severe stiffness he had before using this product. And his coat is beautiful!