Collagen is a protein that makes up the structural matrix of connective tissues throughout the body, including skin, cartilage, bones, tendons, and even organs. Collagen helps tissues resist stretching or pulling, which is important for many of the body's functions, from maintaining firm and youthful skin to healing wounds.

Your body can make its own collagen, but it requires special building blocks called amino acids. Some amino acids can be made by the body, but others-known as essential amino acids-must come from diet supplementation.

Collagen can help reduce join pain following exercise and activity, as well as osteoarthritic pain.

Collagen can improve elasticity, collagen density, and hydration of skin, reducing signs of aging and contributing to a more youthful appearance.

Collagen in conjunction with resistance training can improve muscle strength and mass in both men and women.

Collagen has been shown to simulate the growth of osteoblasts, the cells responsible for the formation of new bone, which may help improve bone density.