Liquid Glucosamine-Chondroitin-MSM Forte is a unique supplement, professionally designed to promote joint mobility and support healthy cartilage. In each serving, 1500 milligrams of glucosamine combined with chondroitin sulfate for cartilage formation. Also included for their natural complimentary properties are 250 milligrams of Optic-MSMTM, Vitamin C and grape seed extract