Grand Flex was the first joint-support product containing glucosamine introduced to horse owners over fifteen years ago. Dozens of companies in recent years have tried to copy Grand Flex's unique formula. The formulation of Grand Flex is as cutting edge today as it was when first introduced. You will not see miracle results overnight – what you will be doing is providing your horse a powerfully effective formula that matches the right scientifically researched ingredients at the right levels to provide long-term support and therapeutic solutions for optimal joint function. Grand Flex has produced effective results and benefited thousands of horses and dogs all these years with a proven formula that works.