Methylstenbolone is a prohormone designed by the guys at Antaeus Labs, and is a DHT that provides solid lean muscle gains while keeping water retention to a minimum.

Methylstenbolone is taken in capsule form and most commonly used by lifters who are looking to gain some serious mass in a short space of time. After the popular superdrol (s-drol) became banned in the United States, many serious lifters turned to Methylstenbolone as a replacement.

The results are just as good and it’s considered much safer to take than s-drol.

Chemical compound name: 2,17a-dimethyl-5a-androsta-1-en-17β-ol-3-one

For anyone thinking of using Methylstenbolone, you will be glad to know this prohormone does not affect your body’s progesterone receptor, nor does it convert later into a estrogenic metabolite. However, Methylstenbolone is still a toxic compound that may cause side affects, but these can be minimized with proper planning.

Note: Methylstenbolone is a steroid compound and it will test positive as a steroid on a drug test.

Dosing Methylstenbolone

With a strong prohormone like Methylstenbolone, we suggest starting with a lower dosage to see how tolerant your body is to the compound. Cycles of no longer than 4 weeks are recommended, below are some sample cycles that lifers usually run:

Cycle 1 – Ideal for first timers

  • Week 1: 4-8mg per day
  • Week 2/3: 8mg per day

Cycle 2- For lifters who have used this prohormone before

  • Week 1: 4-8mg per day
  • Week 2/3: 8-12mg per day
  • Week 4: 12-16mg per day

Methylstenbolone is a fast working prohormone and you should see the effects within the first week.

Note: The cycles suggested should ALWAYS be combined with a PCT and cycle support, which are mentioned later in this article.

Possible side effects

As with using any prohormone you should expect some common side effects, these can be reduced by cycling correctly and having a good PCT plan. Possible side effects include:

  • Fatigue
  • Decrease in libido
  • Increase or lack of hair growth
  • Sensitive nipples
  • Joint pain
  • Back pumps
  • Headaches
  • Aggression

These potential side effects will not happen to everyone taking Methylstenbolone. Most side effects will provide you with some discomfort throughout the day, but you will be able to study, train or go to work as usual.

Cycle support

One of the best ways to reduce side effects during your cycle is adequate planning pre, during and post cycle. Anyone lifting who is thinking about taking Methylstenbolone is required to use one of the following products throughout their cycle:

All of the above will help your body maintain good blood pressure levels, lipid profile and offer added protection to your liver against the toxic compounds. We advise to start your cycle support two weeks prior to starting your Methylstenbolone cycle.

The supplements listed all do pretty much the same thing and it’s personal preference whether you like pill or powder form. You only need to take one of the three supports listed above.

Note: Lifters should also be looking into a TUDCA support supplement to help further reduce liver damage.

Products we recommend are Aegis and Liver Longer.

What results you should expect while on Methylstenbolone

For anyone who is considering taking this prohormone, you should know that dosage, diet and how hard you push yourself at the gym will all be factors in your results. The main three areas you should see improvement in are:

  • Lean muscle gains
  • Huge lift increases
  • Improved muscle endurance

Tailored with the right diet and workout routine, it’s not uncommon for people to lose body fat while gaining lean muscle at the same time. Methylstenbolone can be used during a bulk or a cut, but yields the most benefits for people who are looking to gain some lean mass. Here are a few results from lifters who have taken this prohormone:

Bulking – reports showed people gaining anywhere from 15-20lbs, while taking around 12mg per day over a 4 week period.

Re-comp – reports showed people gaining around 6-11lbs in lean body mass while losing 0-2.2% in body fat. Each cycle lasted 4 weeks with the daily dosage at 12mg per day.

Cutting – reports showed that people were losing from 1-3% body fat while gaining as much as 6lbs of lean muscle. Each cycle lasted around 4 weeks and the average dosage was 12mg per day.

The results are just the base average for what you can expect. With the right diet, training regime and genetics it’s quite possible to achieve more than a 20lb gain within 4 weeks, and keep it after.

The Top Methylstenbolone Supplement

As of now, although many msten products have recently been discontinued, there is still one product that remains. Not only is it one of the most popular, but it’s incredibly powerful too. That product is M-Sten RX by Ironmaglabs.


It is, in our opinion, the best methylstenbolone supplement available right now.

Click here to pick some up.

NOTE: If you’re looking for a safer alternative without side effects, we managed to find a supplement you can actually get for free. Check out their free giveaway promo by clicking this link.

Post cycle therapy (PCT)

If you’re not considering doing a PCT after using Methylstenbolone, you really shouldn’t be cycling with it. Without using the correct PCT, not only will you lose  most of your gains, but the likelihood of side effects will significantly increase. When a body comes off using a prohormone, it puts the endocrine system out of whack and a PCT is what put everything back in check.

Lifters who don’t have a PCT planned after a cycle, can expect:

  • Anxiety and depression
  • Loss of gains and strength
  • Low libido
  • Gynecomastia / puffy nipples

Some commonly asked questions when using this prohormone are:

When should I start my PCT?
Your PCT should start the day after your last dosage.

How long should it last?
Depending on the dosage, your average PCT should be around 4-6 weeks.

Will a over the counter PCT work?
No. When using Methylstenbolone you will need something stronger. This is listed further down in the article.

What benefits are there to running a PCT after using MethylStenbolone?
It will help restore your body’ testosterone levels back to normal, help maintain safe estrogen levels and control the body’s cortisol production.

Our PCT recommendations

As mentioned, using an over the counter PCT will not be enough when using something as strong as Methylstenbolone.

Sup3r PCT is the most recommended supplement to use while taking methylstenbolone. Produced by Olympus Labs, Sup3r PCT is formulated to be an all-around post cycle therapy product. Apart from regulating estrogen and prolactin, this PCT supplement is also designed to boost testosterone levels as well as stave off liver issues.


Other supplements you can take along with your cycle of m-sten can include:

D-Aspartic Acid  (DAA) – has been proved in studies to increase testosterone levels in humans by as much as 40%. DDA is relatively cheap to buy and aids in increasing the body’s gonadotropin levels.

Elim1nate – promotes a boost in testosterone levels in the body while keeping estrogen and cortisol under control in the process. It also helps avoid post-exercise stress and lethargy.

Note: To run the most efficient PCT cycle you really should be combining the above with a very good selective estrogen-receptor modulator (SERM). Not everybody opts to use a SERM while on a PCT, but when you’re using something as strong as Methylstenbolone, it’s a smart move.

You will most likely need a prescription to obtain a SERM but there are legal ways around it, such as buying them for ‘research purposes’. There are many SERMs available and if you visit certain forums or have basic knowledge of steroids and prohormones, you will have heard of them before.

The following are the most common SERMs that can be bought in pill or liquid form, they are all perfectly fine to use with Methylstenbolone.

Nolvadex (Tamoxifen Citrate)


Clomid (Clomiphene Citrate)


Note: Only one SERM should be used during any PCT cycle.

Here are some typical SERM cycles to use to combined with your PCT and cycle supports.


  • Week 1-2 – 20mg per day
  • Week 2-4 – 10mg per day


  • Week 1-4 – 50mg per day


  • Week 1 – 90mg per day
  • Week 2 – 60mg per day
  • Week 3-4 – 30mg per day

If you have read this far it is safe to say you know pretty much everything there is to know about running a successful cycle on MethylStenbolone. When combined with the right pre and post cycle programs, a solid diet and a beast of a workout routine, your body will see muscle, strength and endurance gains that are out of this world. Methylstenbolone is a prohormone that has been proven to work and produce amazing results.

Remember to contact your doctor before taking any kind of supplements. The information provided is simply our opinion and you should always consult with a professional before taking any kind of prohormone.