Joint-RX® UC-II® Formula is scientifically designed with UC-II® undenatured Type-II Collagen, Curcumin and MSM to reduce joint discomfort, rebuild cartilage and improve joint flexibility. UC-II® is clinically proven to be 2x more effective than regular joint nutrients*, while natural antioxidant Curcumin and MSM also help with joint discomfort. Black Pepper Extract aids in Curcumin absorption. This formula helps to promote healthy joint movement.