Acti-Flex® Pellets is formulated to help support healthy joint function. It contains the most beneficial ingredients to support healthy joints. Glucosamine, Chondroitin, Methylsulfonylmethane (MSM), Perna Canaliculus (Green-lipped mussel) and Hyaluronic Acid are combined in our unique formula to help promote joint health. Key ingredients work together to improve performance by increasing the horse's supply of naturally occurring joint-lubricating synovial fluid, which repairs and strengthens stressed body parts. It works with remarkable speed, making notable improvement within 5 days. Directions for use: Loading: Administer 2 scoops per day for first 5 to 14 days. Maintenance: 1 scoop per day.