If you are going to use cypionate powders, than that is used for injectable. Go to the conversion forums, and they have details on what you need and how to put them in a sterile solution for injection. Sledge is also know as designer supps (his name on here), or matt. He has made several batches of sterile pain-free injectables in the past that many members have liked. Currently he has no more left, but I am not sure if he is coming out with more or not. You will need to go to the designer supplements section on this board and ask.