The most powerful aromatase and cortisol inhibitor currently available on the market. Androsta-3,5-diene-7,17-dione is not a prohormone, nor will it shut down your natural testosterone production. In fact, as it binds to your androgen receptors and lowers your estrogen and cortisol levels, your testosterone will increase naturally, thus helping to improve what experts consider to be optimal T:E and T:C ratios.
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