Check the listing for details. Pack of 3 Instaflex Advanced Joint Support Doctor Formulated 90 Capsules. Condition: New. Listed at 19.99 USD. Instaflex Advanced is made with potent, ultra-premium ingredients like UC-II Collagen, which is twice as effective as glucosamine plus chondroitin at reducing discomfort during daily activities. Backed by an abundance of clinical research and scientific evidence to support maximum effectiveness, our safe, effective ingredients are carefully sourced to ensure maximum purity and potency.Instaflex Advanced is made with potent, ultra-premium ingredients like UC-II Collagen, which is twice as effective as glucosamine plus chondroitin at reducing discomfort during daily activities. Backed by an abundance of clinical research and scientific evidence to support maximum effectiveness, our safe, effective ingredients are carefully sourced to ensure maximum purity and potency.