The ingredient Androsta-3,5-Diene-7,17-Dione is a very potent suicide aromatase inhibitor. It is a metabolite of 7-Keto-DHEA and occurs naturally by metabolism of the prohormone DHEA. It is widely used in sports performance supplements and is commonly referred to as Arimistane. Shop now at- https://bmm-supplements.com/product/arim-ex-androsta-arimistane/