What Is Collagen?
Collagen is a protein responsible for healthy joints and skin elasticity, or stretchiness. It’s in your bones, muscles, and blood, comprising three-quarters of your skin and a third of the protein in your body.
As you age, your existing collagen breaks down, and it gets harder for your body to produce more.
What does collagen do?
Collagen’s main role is to provide structure, strength and support throughout your body.
Collagen’s specific roles include:
Helping fibroblasts form in your dermis (middle skin layer), which helps new cells grow.
Playing a role in replacing dead skin cells.
Providing a protective covering for organs.
Giving structure, strength and elasticity to your skin.
Helping your blood to clot.
Helping Nails and Joints
Helping  Ant-Aging 
Please consult with your doctor before taking any of these supplements