Its human grade from Korea. 250mg per 2ml vial(125mg a ml). People at my gym rave about it. Personally, I thought it sucked. Its just to much oil to shoot at once to get 250mgs. After switching from T200 to the miro my lifts start getting harder. It could have just been dose related because i was taking less total mgs with the miro just because inj were so voluminous.