Hey guys first post. Just wanted to verify some info I have before I get started. I picked up a 12mg vial of Genotropin pfizer. Not the pen. Half powder-half water. I was told all I do is push the plastic end with the water into the powder end of the chamber and pull from that end out of the rubber. Is this correct? How long do I have to use it before the HGH weakens? Il post some pics. Any info helps. Thanks.