don't inject that shit. i posted a thread asking the same question, and everyone told me to drink it, and i was an asshole, and i injected it anyway. big mistake. that shit hurts like a bitch, and after injecting it like the third or fourth time my quad swelled up with a nasty infection that hurt like a motherfucker and took about a week and a half to get better. i missed a leg workout because i could barely bend my knee. just drink up!!!