Although you never know for sure your shit is not counterfeit,and you are taking a chance injecting anything purchased on the black market..at least there is a chance they are legit...to me, it is a very questionable thing,to put that much faith in something that you KNOW was made by some amature in his basement...kinda like using crank,or crystal meth...you are puting a lot of faith in the hands of someone that you likely do not know.(which of coarse you do anyway,but not exactly the same thing)...No thanks,not me.