How do Collagen pills work?

Collagen is a protein which is a building block of the human body as it provides tissues with their structures. And this important protein, like most other important enzymes, hormones and bodily substances, has to be produced by the body itself. Another problem with collagen is that its production decreases with age. This is why people all around the world today are looking to Collagen pills or supplements to replenish the deficit. There are number of benefits of taking Collagen pills and these include reduction in wrinkles, improving skin's elasticity, increased blood supply to skin and improved blood circulation, improvement in hair and nail growth, lessening in joint pain and increased joint flexibility.