... skin and scale, it is rich in natural moisturizing factors. The molecular weight is below 3000Da ... 30 percent of the protein in human bodies and can be found in the skin, joints, teeth, ... cartilage, cornea, ligament, skin, tendon. The body’s natural production of Collagen decreases as we age, so taking ... as a supplement. Collagen in topical products can moisturize and nourish skin but not replace it ...