... factors. The molecular weight is below 3000Da, It's easy and good for body absorption.Continous taking collagen supplement, you will ... . Curing a person's younger years, the body continually discards old collagen and creates new collagen. After the age of 25 ... in blood vessels, bones, joints, cartilage, cornea, ligament, skin, tendon. The body’s natural production of Collagen decreases as we age, so ...