Pure marine collagen for joints. As a vital part of joint cartilage, Collagen is essential for supple and flexible joints. In fact, it is responsible for the shiny surfaces that enable joints to move smoothly and comfortably. Researchers believe, however, that we lose approximately 1.5% of our Collagen per year after the age of 25-30. High Strength Collagen provides pure marine collagen, hydrolysed for easy absorption as a nutritional support for joints. It is best taken with a daily multivitamin and mineral and vitamin C.