Excellent choice for those seeking first-rate supplementation Coated caplets Extra Strength Glucosamine Chondroitin Complex combines both Glucosamine Sulphate and Chondroitin Sulphate. Extra Strength Glucosamine Chondroitin Complex also contains Manganese, a mineral which plays a role in the maintenance of normal bone and in the normal formation of connective tissue. Excellent choice for those seeking first-rate supplementation Coated caplets Extra Strength Glucosamine Chondroitin Complex combines both Glucosamine Sulphate and Chondroitin Sulphate. Extra Strength Glucosamine Chondroitin Complex also contains Manganese, a mineral which plays a role in the maintenance of normal bone and in the normal formation of connective tissue.