Granions Chondrostéo Joints Collagen Activ 30 Capsules is a dietary supplement based on a new formula to help maintain a normal joints function (cartilage, bone, tendons and muscles). It is composed of 3 families of rigorously selected active ingredients:Constituents naturally present in cartilage of which the production capacity decreases with the age :undenatured (unhydrolyzed) type II collagen, UC-II Collagen,methyl-Sulfonyl-Methane (MSM) containing sulfur,Vitamins :vitamin C contributes to the normal formation of collagen to ensure the normal function of cartilage and bone;vitamin D helps maintain normal backbone and muscle function;One trace element: Manganese contributes to the normal formation of connective tissue, including cartilage and tendons.This formula is suitable for seniors.