Hey blurblur, collagen is the main protein of teh human connective tissue, the matrix in our bones, mucles and tissues, holding our body together. Also know as "skin scaffolding".
You can buy it as pills of liquid form. It helps to repair & norish skin's damaged layers, improve skin moisture, testure, lighten spots, freckles, wrinkles, etc.
I think i'm getting it one month before my AD.
I just get to know a Japan brand that was told better than fancl and it contains CoQ10 and 5000mg of collagen. Cost abt $150 a bottle can last 1 month, cheaper than fancl, GNC.