So what is the filler Collagen made of... or as cosmetic surgeons describe it purified bovine collagen? Well let's descramble those words a bit so we know what they mean. "Purified" equals very, very clean. "Bovine" equals cow and "collagen" equals skin glue. Or to give it a little bit more medical gravitas: highly processed - cow skin - connective tissue protein (...an abattoir by product.)

And what about  AlloDerm and other acellular human cadaveric dermis products, which are also popular fillers? To get these, one follows the same sort of process as that for collagen and dead cows, except it involves cadavers or dead humans.

Finally what is Botox (used to erase frown lines)...otherwise known as Clostridium botullinum? This is a food poisoning bacteria found on moulding, contaminated food.

(See the very candid site http://www.yestheyrefake.net and search Botox, Injectable Fillers, Injectable Bio-implants).