Age, physical activity and calcium influence bone strength, joint flexibility and mobility. The CARTLAGE DE REQUIN capsules provide collagen (37%), a protein whose function is valuable to form all connective tissues of the body. Collagen is the most abundant structural protein of cartilage. CARTLIGE DE REQUIN therefore helps to give strength and elasticity to the joints. The calcium provided by the capsules of CARTLIGA DE REQUIN contributes to the conservation of strong bones. CARTILAGE DE REQUIN capsules also contain chondroitin sulphate, a material immediately usable by our body, which help to the cartilage development. CARTILAGE DE REQUIN contributes to protect cartilage and bone structure.