Well I ran upon this product,Osteo Bi-Flex Knox Nutrajoint with Gelatin.I knew that knox gelatin help with your finger nails to make them grow.So I thought that it couldn't hurt to start taking it for my joints.I have bone on bone rubbing in both knees and the Doctors told me somewhere down the road they had to be replaced.I thought there might be something else I could do.And the Gelatin has helped so much.I have just a slight pain in my knee now when it rubs.I have gotten this product at Amazon.com