Now ® UC-II ® is a dietary supplement in capsule form with a complex of pre-digested chicken sternal cartilage containing hydrolyzed collagen and algae powder ( Lithothamnion calcareum ). The hydrolysis process makes it easier for the body to absorb the active ingredients because they are already in smaller particles. Now ® UC-II ® - food supplement with collagen Collagen , the most abundant protein in mammals, constitutes approximately 30% of the proteins in the body. It is the basic element of connective tissues: skin, tendons, ligaments, cartilage and muscles. Derived from chicken sternum cartilage, UC-II ® is a unique form of collagen with undenatured type II collagen. A package of 120 Now ® UC-II ® capsules allows 4 months of supplementation.