Joint Relief is a natural joint support supplement rich in calcium and vitamin D. It contains active, bioavailable nutrients to support cartilage and optimize healthy joints. The product is largely made up of shark cartilage with naturally-occurring chondroitin sulfate and glucosamine sulfate, which help support and maintain structures that facilitate healthy joints.* Glucosamine and chondroitin are “raw material” nutrients for cartilage, connective tissues and lubricating factors within the joints. These natural compounds support the plump, cushy, hydrated “shock absorber” cartilage that is necessary for optimum joint health.Joint Relief is a natural joint support supplement rich in calcium and vitamin D. It contains active, bioavailable nutrients to support cartilage and optimize healthy joints. The product is largely made up of shark cartilage with naturally-occurring chondroitin sulfate and glucosamine sulfate, which help support and maintain structures that facilitate healthy joints.* Glucosamine and chondroitin are “raw material” nutrients for cartilage, connective tissues and lubricating factors within the joints. These natural compounds support the plump, cushy, hydrated “shock absorber” cartilage that is necessary for optimum joint health.