The authors speculated that the increase of estrone was due to the body trying to normalize via the HTPA. Another thing they said is that its a class 1 AI but it doesn't stop all production of aromatase. this (imo) the closest thing to a perfect hormonal product for the natty guys who don't want to do designers, yet don't get what they desire from some of the less than great test boosters on the market. (I'm clearly not saying there isn't good products on the market). the biggest take away for me is that
6-oxo is able to keep the bodies epi-test ratio close to normal. huge increases in serum hormone levels while tricking the body to think everything is normal.