Proviron can I use it as an aromatase inhibitor to control estrogen?

Proviron can I use it as an aromatase inhibitor to control estrogen?

The real answer is NO but its really not that simple.

This is your basic Google search answer that you get when researching proviron.

Proviron is the brand name for the orally applicable androgen and DHT(dihydrotestosterone)derivative called Mesterolone. Roughly 5% of testosterone undergoes 5-alpha reduction to form the potent androgen DHT, which is a sex hormone and androgen hormone. DHT plays a major role in the formation of the male genitals, and, in adults, it acts as the primary androgen in the prostate and hair follicles. Proviron is almost as pure a DHT steroid as you will find out there. With DHT compounds such as proviron, you need not worry about any estrogen aromatization.

Its confusing a bit because it says that you don’t need to worry about estrogen aromatization but it really means that you don’t need to worry about proviron becoming estrogen in the body.

Proviron is mesterolone
Which is DHT or (dihydrotestosterone) its a great addition to a cycle because of a couple different reasons. The rumor or the broscience that proviron will block your estrogen and can be used as an AI comes from that on a functional basis, Proviron carries four primary traits that largely define its mode of action. First and foremost the Mesterolone hormone has a strong binding affinity to Sex-Hormone-Binding-Globulin (SHBG). In fact, it appears to be one of the strongest anabolic steroids in this regard. By binding to SHBG, a hormone partially responsible for reducing free testosterone, binding SHBG will enhance the amount of circulating free testosterone. More importantly for the anabolic steroid user, it will make a larger percentage of the anabolic steroids used available in a free rather than bound state. A simple way to look at it is the anabolic steroids you’re taking become more powerful and potent.

Proviron also has the ability to interact with the aromatase enzyme, the enzyme responsible for the conversion of testosterone to estrogen. By binding to the aromatase enzyme, Proviron can actually inhibit aromatase activity, thereby offering protection against estrogenic side effects. It will not carry an anti-estrogenic effect near the level of power of an Aromatase Inhibitor (AI) but it will be notable. Depending on the nature of the cycle the individual undertakes proviron will help with estrogen but only with a low dosage of testosterone and this is only when the user is not estrogen sensitive.

I personally don’t run a cycle without proviron and I will run it with a trt or cruise dose as long as im on because of it making the testosterone more available and offering the higher free testosterone levels which is important to building lean mass.

So to anyone thinking about using proviron as an aromatase inhibitor please have a actually aromatase inhibitor like arimidex, aromasin, or letrozole on hand just in case its better to have then to get caught without one and end up needing surgery to remove the gyno that has set in go off of real research and take broscience with caution.


Thanks for this post man ! I love proviron but I never cycle off of it but I heard it’s something you can run year round is that true ?

1 Like

I have multiple times im off gear now but I normally run it whenever I run testosterone.
I will be back on around February

1 Like

If you can’t ask it publicly you probably shouldn’t ask me the question that you plan on asking

1 Like

Have you experienced hair loss issues with it

Some but I don’t know if it was from testosterone or primobolan or proviron one of the 3 but I believe it was the primobolan actually.

Very possible. I got my wife some primo when her immune system wasn’t bouncing back from chemo. It had been about a year so she had her hair back but the primo had it falling out in about four weeks. Anything that would make a woman shed scares the crap out of me

1 Like

Sometimes @Bigmurph I laugh and have that sense of well being when I read your stuff, and I know most of it isn’t ment to be funny, but it’s because I agree, and I really enjoy things that are well said.

1 Like

I don’t run it year round but dam near close, and someone running it year round I’ve heard of a few times.

1 Like

I really appreciate that brother

1 Like

I love being on it and my girl loves when I’m on it to lol I been on it for 8 months straight and I still get the same effects as when I started it, I would of thought my body would of got used to it and it would eventually stop working and would have to cycle off but nope I still feel awesome libido sky high insane pumps it keeps me nice and dry when I’m just running test it’s honestly my fav steroid

1 Like

Ha ha, yes I enjoy it to.

1 Like

I never run any cycle without Proviron. I have Adex and Letro on hand but almost never need them. Proviron controls E2 for me up to 500mg/week test. I run it almost year round at 25 or 50mg/day depending on what else I’m taking. I saw a couple studies they used 150mg/day for a year and cholesterol was pretty jacked but liver values and everything else was good.

I think the effects dont fade because so much of it is bound with SHBG and aromatize enzyme that the small amount that actually binds to androgen receptors doesnt over saturate them. This last paragraph is purely my opinion and based on 0 scientific evidence.


I like what you said, and agree on all of it, I use it all the time, ranging 25-50mg.

1 Like
Any communication between a site sponsor or source is strictly between the member and source directly. Please check the laws of your country before you order any of their products. The onus is on the buyer, and the sponsor nor will not be responsible in any way if you break the laws of where you live.