I show dogs, and heard about adding this to my dogs food and that it would double their coats in 30 days. Since I had a huge show coming up in 40 days I picked up some and gave it to my dogs. In less than 30 days their coats looked great and seemed to double the amount of coat on them. The big show is in 7 days so I will be keeping them on this product. So far I am very happy with the results.