I am somewhat a newcomer to the gear game, been lifting for years, but just got involved with juicin. I keep on hearing so much about insuline, and my question is do you use insuline while cycling or how are people using insuline to build muscle mass. I know this is a very cautious injectable to be using because it can be just as harmful as beneficial. Is there certain types of insuline that you use and what are the normal doses and so forth. Would appreciate any input from people with personal experience on this matter.