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02/03/2026 7:47 pm
Topic starter 
What are good estrogen blocker during or post cycle?
Harley Jac 04/03/2026 11:40 am To keep the man-boobs away and your hormones in check, people usually run Arimidex (Anastrozole) or Aromasin during the cycle, then switch to Nolvadex for PCT.
4 Answers
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03/03/2026 12:31 pm
Bloodwork is the smartest way to know if you actually need estrogen control. Only then can be decided the best options.
Paul Owens 04/03/2026 10:29 pm So if your oestrogenic levels (17-Beta Oestradiol) are around 460pmol/L (max limit is 150) presumably this could lead to Gynaecomastia? mood swings? ED? (But not necessarily? What else or other markers would affect those symptoms....if any?)
That was my results back today.. everything else was in limits ... other than Test at 54nmol/L
SHBG Normal at 31.2nmol/L
I see the doc next week to discuss, but thought I'd share this here.
Currently not having symptoms but seeing those results feels like I should be getting massive boobs.
Would the advice be get Arimidex? even as a precaution?
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03/03/2026 10:05 pm
There are 2 options: -
1) SERMs (Selective Estrogen Receptor Modulators)
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Clomid (clomiphene citrate)
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Nolvadex (tamoxifen)
2) Aromatase Inhibitors (AIs)
- Arimidex (anastrozole)
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04/03/2026 12:20 pm
For me and for the people i know, Clomid has always been the best option for PCT as it helps in kick starting the natural production of testosterone. Nolvadex is also helpful to block estrogen at receptor levels, that helps to stop gyno.
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04/03/2026 1:15 pm
Masteron, primobolan or boldenone / Equipoise are good secondary compounds used for oestrogen control on-cycle. Everyone is different but for me a ratio of about 1:1 works ok. Some people will need more like 2:3 or 3:2 and there's no way to know without making a choice, staying on it for a few weeks and then getting bloodwork, specifically a male sex hormones panel (test, e2, prolactin, SHBG etc.) Check your e2 (oestrogen) and see how you feel (d1ck won't work with very low e2 and won't work with high e2).
If you want your balls to stay working and have good sexual function you may require HCG (250-500IU 3 x weekly, for example). This converts readily into oestrogen and should be taken into account with the aromatise inhibitor (EQ, primo, mast or Aromasin). Arimidex, Clomid and Nolvadex shouldn't be on your shopping list really. The other options are safer and usable long-term. If you've already got gyno it's too late.
Simon
This post was modified 3 months ago by Simonwinnsmith