Collagen is your body's key structural protein integrally involved in creating strong and healthy nails, hair, tendons, bones, muscle and keeping our skin smooth Collagen 1 & 3 are the main collagen types in connective tissue | Collagen is critical to the formation and on going health of the skin, cartilage, ligaments and other bodily tissues and structures Vitamin C assists the body in the manufacture of collagen, the protein that binds cells together and is the building block of connective tissues throughout the body Collagen Type 2 is a significant part of your body's cartilage with naturally occurring hyaluronic acid for joint cushioning and lubrication Please read all label information on delivery