Only a few years ago, a lot of people had not heard of collagen. If they had heard of it, there was not a lot of serious consideration about collagen being a necessary supplement. When one mentioned supplements, usually the conversation would go toward minerals, vitamins , protein powder, some herbs, and there has been a special interest in creatine . With greater understanding, and also, the coming of high-grade collagen supplements into the market, people have become interested not only in collagen but also learned quite a bit about its different types. This interest is completely justified. For a lot of people, collagen has already become a supplement that they regularly take and can attest to the benefits they have derived.