Dietary Supplement Replenishes Collagen Fights the Effects of Aging Enhanced with Boswellia Type 2 collagen is the main component of healthy joint cartilage, which acts as a cushion between bones. Youtheory Joint Collagen is designed to help replenish the body's supply of essential collagen protein. This formula provides a special type of collagen that is uniquely processed to allow digestibility and absorption into the body. It also includes botanicals and nutrients that are traditionally used in joint formulas.