Proviron (Mesterolone) is not an aromatizing steroid so doesn’t come
with estrogenic side effects. More than that, it does have the ability
to affect the aromatase enzyme in a way that can actually bind to it and
inhibit its activity, giving Proviron some measure of aromatase
inhibition or anti-estrogen effect.
While this isn’t anywhere
near as powerful as a true aromatase inhibitor, it is a welcome
attribute of a steroid when so many other steroids display the very
opposite effects. However while estrogen related side effects aren’t an
issue with Proviron itself, there are other potential side effects to be
aware of.
Androgenic side effects: Mesterolone has some strong
androgenic effects, after all it was originally made to medically treat
deficiencies in androgen. It is based on DHT which itself is an androgen
so it should come as no surprise that you can expect to see activity in
this area and these side effects cover issues that most steroid users
will be familiar with, including potential acne and hair loss or male
pattern baldness.
The
occurrence and severity of these particular side effects are highly
individual and some people may experience very little or none at all,
while others will see quite severe flare ups of acne. When it comes to
hair loss, if you’re genetically predisposed to baldness then Proviron
can stimulate this to happen much earlier than it might otherwise have
done so. Guys without any genetic links to hair loss won’t have to worry
about this androgenic side effect.
The high androgenic activity
in Mesterolone makes it unsuitable for use by females as it’s almost
certain to cause an onset of masculine features like a deeper voice and
body hair growth. Mesterolone is an even higher risk for females when it
comes to these side effects compared with some other steroids and
therefore Proviron is not recommended to be used by females.
Another
area that raises concerns with Proviron use is that of cholesterol and
compared with many other steroids which themselves can cause some
serious impacts on cholesterol, Proviron is considered one of the more
harsh ones in this regard and one that comes with high risk to
cholesterol health.
For this reason anyone with existing high
cholesterol issues is always advised to avoid using Proviron at all.
Even those with normal cholesterol levels will need to remain alert to
what effect Proviron is having on your cholesterol throughout your
cycle.
There’s no doubt that Mesterolone can have very strong
impact on your good cholesterol levels, potentially reducing them by
almost a third in some cases. At the same time it can be raising your
bad cholesterol levels by a significant amount.
Without sustained
cholesterol friendly diet habits and cardio exercise while you’re using
Proviron, it does pose a very high risk in this area so anyone wanting
to use Proviron absolutely must formulate a plan to help maintain
healthy cholesterol for the duration of the cycle.
As you might
expect, Mesterolone also comes with the side effect of testosterone
suppression but its impact is quite minimal when compared to almost any
other steroid. At the dose that most guys will be using Proviron it is
unlikely to cause any noticeable testosterone suppression related side
effects and therefore it is one of the very few steroids you can use in
most cases without the need for adding a testosterone steroid.