Proviron Cycle: Results, Side Effects, And Dosages


In today’s article, we are going to be talking to you today about a Proviron cycle.

Yes, in the world of bodybuilding, there is a dirty little secret that not too many people speak of.

No, we’re not talking about Arnold’s controversial comeback Olympia win in 1980, we’re instead talking of the “S” word.

No, not that S-word, we mean steroids.

To somebody with no real knowledge about human anatomy and health and fitness in general, steroids are the devil incarnate.

The mere mention of the word renders them unable to function and results in them mumbling words such as ‘road rage’ or ‘heart attack’.

Yes, we know that steroids are very dangerous, and we also know that they’re illegal but no two steroids are 100% alike.

Some of stronger than others, some are weaker than others, and some, in all honesty, you’d be better off not bothering with at all.

Today we’re focussing on one of the more popular and effective steroids currently on the black market.

Yes, we’re looking at running a cycle.

In this guide today we’ll be looking at what Proviron is, how it works, what it does, what a Proviron may look like, dosages, side effects, and whether PCT is required once your cycle is complete.

All of these questions, and more besides, will very shortly be answered.

Warning: The content on and the information included in this article is intended for entertainment and informational purposes only. It is not intended nor implied to be a substitute for professional medical advice. Prior to buying anything, check that it is compliant where you live with your current government laws. We frequently mention research chemicals that are not made for human consumption. Therefore, before purchasing any product for personal use, consult with your doctor or healthcare provider first.

What Is Proviron?

Proviron, or mesterolone, is one of the oldest androgenic anabolic steroids currently on the market today.

It was created by a company known as Schering, who back in the 30s, was as big in the pharmaceutical industry as Apple is in the tech industry now.

That’s right, this steroid was first available on the market back in 1934.

That is pretty remarkable when you stop and think about it, as it means that it has been around before WW2.

Over the many years, it was available, it was marketed under many different names.

Despite this, Proviron still remained the most popular and it is Proviron how it is known to this day.

Though very unique, it shares a few similarities with Masteron, along with Winstrol and Anavar.

If you know your steroids, you’ll know that compared with the big boys like Tren, these steroids are actually quite mild.

You might like to check our article about Deca VS Tren.

Mild yes, but there are still powerful enough to provide impressive results and they can still do some damage.

Needless to say, this gives you an idea that Proviron is perhaps not as powerful as other steroids. It is, however, still very unique in its own way.

This steroid is not designed to be used for bulking purposes so if you want to become the next mass monster and pack so much size on that you’d give a prime Markus Ruhl a run for his money, Proviron isn’t for you.

It promotes lean muscle mass and fat loss and is, therefore, a great addition to many cutting stacks.

The FDA never actually approved this drug for therapeutic use, though it was approved in many parts of Europe.

It was used to treat androgenic deficiencies and can be used to treat a wide range of fertility issues, especially in men.

This steroid is a structurally altered DHT hormone that possesses the methyl group located at the carbon one position.

It is an oral steroid, it carries an androgenic rating of 30 – 40 and an anabolic rating of 100 – 150.

This rating is compared with testosterone, which in both categories, carries a rating of 100.

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Proviron Benefits:

Proviron Cycle (Mesterolone) – Benefits, Side Effects, Dosages

Now it’s time for us to take a look at a few common benefits associated with Proviron usage.

These include the following:

Fat Loss

If you want to pack on 40 pounds of muscle in a single cycle, Proviron isn’t the steroid for you.

It promotes marginal increases in lean muscle tissue, but primarily it works by increasing core temperature, speeding up the metabolism, and helping to burn off stubborn body fat.

For those of you looking to get lean, either before a show, a holiday, or just because, Proviron is hugely beneficial, which makes it one of the top fat burning steroids.

Proviron is great for burning fat, leaving you looking leaner and slimmer than ever.

Great For Cutting

As many bodybuilders will know, the hardest part of any contest prep is the cutting.

During this phase of the prep, the bodybuilder’s primary objective is to burn off as much fat as possible, while maintaining lean muscle mass.

Proviron is a very useful steroid because it promotes lean muscle growth and enables the body to preserve what existing muscle it already has.

All of this is while the metabolism is ramped up burning off body fat, and you’re in a caloric deficit.

Inhibits Aromatization

One of the worst things about steroid use is the fact that many steroids promote a process known as aromatization.

This is a process where testosterone, either in the body or via the steroids themselves, is converted by the body into Estrogen.

Estrogen causes weight gain, water retention, hormonal fluctuations, gyno or gynecomastia, and much more besides.

It also promotes the production of cortisol, which is a stress hormone that is anti-anabolic.

Proviron however, does not aromatize.

In fact, it inhibits the aromatization process.

It is able to do this by interacting with the enzyme responsible for aromatization.

It binds to it and actually inhibits aromatization activity.

This means that it is able to offer much more protection against Estrogenic activity – helping you to avoid many of the side effects associated with it.

Increased Lean Muscle Mass

Okay, while it won’t pack anywhere near as much muscle onto your frame as Anadrol, Trenbolone, Dianabol, or other powerful steroids, this is still an androgenic anabolic compound that has the ability to promote increases in lean muscle mass.

If you use this steroid and continue to eat right, work hard in the gym, and lead a healthy lifestyle, you will notice improvements in your physique which will become more noticeable with each passing week.

On average, you can expect around 10 pounds of lean muscle from a cycle, which is certainly nothing to be sniffed at.

Building this amount of muscle naturally would take years, rather than months.

Improved Effects From Other Steroids

For best results, bodybuilders often stack Proviron with other anabolic androgenic steroids.

This is beneficial for two reasons.

The first benefit is the fact that it helps to prevent Estrogenic side effects as we mentioned previously.

The next benefit is the fact that Proviron actually acts as a catalyst for the other steroids in your stack, so it can make them more effective.

It does this because it carries a very strong binding affinity to the androgen receptors in your body.

This means that the Proviron, and the other steroids in your stack, become more effective.

No Injections

Not everybody likes sticking a needle in their skin, and if you’re one of those people that hate needles, you’ll love the fact that this is an oral steroid.

You can check more about this on our Oral Vs injectable steroids case study.

It is therefore taken in tablet form and is simply swallowed in the same way that you’d swallow a painkiller if you had a headache.

Proviron Cycle (Mesterolone) – Benefits, Side Effects, Dosages

Proviron Cycle:

Now it’s time for us to take a look at a sample cycle for you to consider.

Remember, it all depends on what you want to get from your cycle and what your goals may be.

The following, however, does give you a general idea of what you should be running:

Cycle 1

Week Anavar Proviron
1. 40mg per day 40mg per day
2. 60mg per day 40mg per day
3. 80mg per day 60mg per day
4. 80mg per day 60mg per day
5. 80mg per day 60mg per day

Cycle 2

Week Dianabol Proviron
1 40mg Each Day 50mg Each Day
2 40mg ED 50mg ED
3 40mg ED 50mg ED
4 40mg ED 50mg ED
5 40mg ED 50mg ED
6 40mg ED 50mg ED
7 40mg ED 50mg ED
8 40mg ED 50mg ED

Proviron Side Effects:

Now it’s time for us to look at some of the less-glamorous aspects of steroid use.

Yes, we’re talking about the side-effects.

While Proviron is safer than most, it is still a very dangerous steroid that could potentially prove fatal if abused.

Common side effects include:

Liver Toxicity

As is the case with all oral steroids, even with Halotestin, one of the most severe side-effects you will need to watch out for is liver toxicity.

Oral steroids are notorious for damaging the liver.

This is because, unlike oil-based injectable steroids, oral steroids do NOT bypass the liver.

They pass through the liver and cause damage on their way through.

This is why PCT should always be used and it is why on-cycle support in the form of a Milk Thistle supplement, should always be used.

Baldness Issues

If male pattern baldness runs in your family, using this steroid could result in you losing your hair at a much faster rate than you would without it.

It does not, however, cause hair loss (RU58841) in everybody.

If you are not susceptible to hair loss, your head of hair will still remain perfectly intact.


Another common side-effect associated with Proviron use is the fact that it can cause acne.

This is because it causes oils to build upon the skin, so oily skin is also an issue.

These oils clog the pores and prevent them from breathing.

This then causes spots and blemishes.

Most steroid users will find that they get spots on their faces, and on their backs and shoulders.

This is why it’s so important to maintain a healthy hygiene routine when using anabolic androgenic steroids, as you can reduce your risk of acne.

Enlarged prostate

Okay, this next side effect is only true in people who actively abuse this steroid.

If you consume more than you should and use it at the wrong times, it can result in the prostate gland becoming enlarged.

This can leave you susceptible to other health issues, including an increased risk of prostate cancer.

The moral of the story here is that you should never abuse steroids.

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Proviron Dosage:

Just to ensure that you really have been paying attention to what we’ve spoken to you about today, we’re going to look at typical Proviron cycle dosages.

If you were paying attention you’ll know these dosages already, but if not, allow us to refresh your memory.

As it is a fast-acting oral steroid, Proviron is consumed daily.

Each day, dosages range from 40mg per day to 60mg each day.

Is PCT Required?

Post Cycle Therapy , or PCT as it is known in bodybuilding circles, is always required when running a steroid cycle.

It doesn’t matter how great you feel, or how weak the steroids were, you should always run PCT after ending a cycle.

PCT should come in the form of Clomid and Nolvadex.

It should look something like:

Clomid – 50/50

Nolvadex – 20/20/20/20

Still Have Questions?

Drop us a comment down below and one of our expert coaches will respond to it. We’ll also be answering questions on our Instagram!

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Reda Elmardi

Reda Elmardi | Writer

Reda Elmardi is a BJJ, fitness and bodybuilding fanatic. He's been writing about his experiences for over eight years and started his own publications on topics such as BJJ, Steroids, and Fitness.

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1 year ago

Hi Reda,
Love your insightful articles.
I have few enquiries if you don’t mind; what results should one expect from a proviron + dianabol cycle?
Dosage and duration for pct?
When to incorporate arimidx if I should?
Should my food intake be on a surplus or not if I look to benefit from an increase in lean muscle

Many thanks

Luis Campos
1 year ago

Reda awsome work
Perfect explanation

1 year ago

Incorrect……..Proviron is NOT damaging to the liver despite it being an oral steroid. It is NOT a c17 methylated steroid (probably why its not more effective too). Even under heavy use, it has shown no damaging effects to the liver in all studies.

1 year ago

what horrible article by low iq retard

1 year ago
Reply to  fuck

fuck could not find his own arsole even when using a mirror and a stick !

11 months ago
Reply to  fuck

No he’s just one of the extreme few who actually look at the test results not just take someone’s word for it

11 months ago
Reply to  fuck

You probably believe that a white diaper over your face will protect you from microscopic size molecules
like the people I laugh at the riding a bicycle with a helmet on the beach and they have a mask on their not protecting their hands their knees or their elbows with the most likely to get hurt in a crash but they’re protecting themselves from coronavirus. They ride in the street with no lights and no mirrors and getting people’s way those are the Mindless dead

Pelles Mom
21 hours ago
Reply to  pelle

Pelle, you are seriously a major disappointment to your parents and extended family. If you can’t understand people wearing masks in an attempt to prevent a pandemic then you are just an asshole who is probably extremely lonely and will never get laid, never get invited to a party, never have any real friends etc. etc. I almost feel bad for you but then I remember, you’re an asshole.
How does anything in this article or anything anyone talked about have to do with wearing masks or bicycle helmets? You were just itching to get into a fight about something so pointless and about people wanting to try and protect their families health.
Get a life you. You are such a pitiful loser I can’t imagine being so delusional.

Chemical Structure

Mechanism of Action

Proviron is an anabolic steroid that binds to Androgen Receptors and stimulates protein synthesis in muscle cells. It also improves muscle recovery and strength.

Class of Compound


Street Names

NSC-75054, SH-60723, SH-723


  • Increases lean muscle mass
  • Improves muscle endurance
  • Improves fat loss

Side Effects and Dangers

  • Liver toxicity
  • Oily skin and acne
  • Enlarged prostrate

Ask our coaches a question below!x

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