Fluid Action® HA powder is our extra strength joint health supplement that helps promote healthy, well lubricated joints. Fluid Action® HA powder contains functionally high levels of the most recognizable joint health ingredients like Glucosamine, Vitamin C, MSM, Yucca, and Sodium Hyaluronate, just to name a few. Olive fatty acids, Turmeric, Chondroitin, Vitamin D, and Boswellia serrata are included for additional support. See healthier joint function in your horse within 8 days.