I am doing some serious research on heroin. I am trying to learn about the different types of heroin: Heroin #1, #2, #3 & #4 and how they are used. This is my first thread and post on Bluelight. I hope I'm in the right place and I have no idea how this will be reached or commented on! I appreciate help to find my way around here. I'm impressed with much of the discussions that take place here.