Its 2a,3a-epithio-17a-methyletioallocholanol (or 2a,3a-epithio-17a-methyl-5a-androstan-17b-ol) 0.0125g (12.5mg) Its active chemical is described as powerful steriod thats very anabolic but barely androgenic. Its "q" rating is 12 which is a good thing as far as I know. The new MD mag describes it on pg 322 as powerfull stuff. Hope that helped Hell I may even buy it.