well its good, but a friend had 10 amps tested, and the results came back, that 8 out of 10 amps contained test, but two amps were oil only, no steroid, so I say you can figure if have 10 amps that atleast one of them is going to be oil only. Some may differ on this opinion, but just like all tests out of mexico its either underdosed and underfilled, I think the tornell version or aratest is better to go with than primoteston, and the testoprim-D is okay too!