Do some research bro, when people talk about substituting nol for adex or vice versa it's very frustrating, they're two different things.
Nol is a SERM - Search!
Adex and fem are anti-aromatase's
I have recently found adex, and I'm in love. Whilst on test/dbol cycle, I looked ripped using 0.5mg adex EOD, I kept acne totally supressed which is rare for me, prvious cycles have scarred me.
.....and then came PCT, I will never do pct without adex, it made me bounce back, I coulnd't even feel a transition from stopping the cycle and when my natty test came back. Acne was also kept to a minimum, odd pimple EOD, which went after 2 days.
I have read studies indicating that adex increases natural serum test levels by 58%.
As you might guess, nol does not do anything like this (looking ripped, no acne, increase natty test by that much, or stop bloat)
Nol is an excellent drug for early gyno symptoms, but don't confuse the 2 totally different drugs.