Just got gear for my 1st cycle. Ive got a friend with a good source so I got it from him. My question/concern is I told him I wanted test e. He says I got test e 400. From my reading on here I have gotten the impression that 400 is different from regular test e. Am I mistaken? I wanna be sure of what I have and am doing BEFORE I start. Is test 400 just stronger than say test 250 or is it something different entirely? I suspect it is just 400mcg/ml instead of 250mcg/ml but Im not sure. I cant post lab name or info as the bottles do not have anything on them. I suspect homebrew? He is a very good friend and has known and been using his source for awhile so Im not concerned about that, I just wanna feel like Im 100 percent sure before I start. Thank you in advance for any help.