Google analytics says that thousands of people search daily for information regarding collagen on the internet. This means that women (and hopefully many men too) are more and more aware of its importance. To summarize, collagen is the molecule that builds our skin, hair, nails, connective tissue in the joints, and ultimately participates in holding cells together in the entire body. The fact that after the age of 25 the production of collagen in our body drops by an average of 1.5% every year, is sufficient to conclude that we should start adding collagen by the time we reach 25 at the latest if you care for your health. It is definitely up to each individual to decide.