iron labs was a great company in the uk, who closed their doors. I heard they re started here in the states, but for being as reputable as they were, i havn't seen them at too many retailers any more.
i've used their m1t from the uk, it was good, and have used their superdrol as well, which is also legit. i got the sd from orbit. so if thats where you got it, it most likely is good.