What is Masteron prop?

Masteron prop is a performance-enhancing drug most commonly associated with pre-competition cycles. It is very subtle in its effects and works synergistically with other drugs to help create an overall leaner and denser physique.

Athletes, especially those involved in sports which require bouts of speed also favour Masteron thanks to its ability to promote solid, lean mass with little to no side effects. Masteron works best on those with low body fat levels.

The characteristics of Masteron make its half-life relatively short. Similar to test prop and NPP. Levels will peak in around 24 hours then begin to lower over a few days. Running a cycle of Masteron prop will require a 3x weekly injection frequency.

Over the years Masteron has become known as a relatively ‘weak’ steroid. However, Masteron cannot be compared to the likes of deca, or tren. Masteron works best as ‘the icing on the cake’ so to speak. When at low body fat levels, Masteron can help tighten the muscles and offer a more grainy and tight look to the muscle.

Rarely would Masteron be run solo. It offers very little as a standalone steroid. Using Masteron outside of a cutting cycle has also left people disappointed. 


Very rarely will users report side effects when running Masteron. It has been used by many to negate the effects of estrogen by other compounds instead of running an AI. Again, though, this is person dependant and you should always have an AI on hand before running a cycle.

Androgenic Rating: 50

Anabolic Rating: 100

Masteron for gyno
Alpha Pharma Masteron Propionate

Masteron Propionate

Masteron prop is only manufactured by UGLs. The strength can vary from lab to lab, however, the most common products come at 50mg/ml or 100mg/ml.


How Much Does Masteron Cost?

As mentioned, Masteron is available from UGLs and is favoured as a pre-contest drug. With that in mind, the prices can vary and it is often more expensive than testosterone.

An average price range for purchasing from an underground lab can be from £30 per 10ml vial up to £45.

What Does a Masteron Cycle Look Like?

Masteron is a drug used with one thing in mind, enhancing your look before stepping on stage. Which is why you will rarely see it being used in bulking cycles, even regular gym bunnies who enjoy running a pre-summer cycle will often not look at Masteron.

The lack of use of Masteron typically spans from its mild effects, unlike many other performance enhancers on the market. If people cannot feel it or see it, generally speaking, they think it’s pointless.

A cutting cycle may consist of test prop, Masteron prop and Winstrol run for 6 – 8 weeks. Masteron is also available as an enanthate ester which requires less pinning and can be run more comfortably for longer periods for people who plan to do a longer prep. 

Halotestin can also increase the hardness and density which Masteron brings to a pre-comp look.

As with anything to do with performance-enhancing drugs, not everything works for everyone. It is important to listen to your body and see what works for you. 

Beginner Masteron Cycle

Weeks 1 – 8

  • Monday 1 x 100mg test prop / 1 x 50mg Masteron
  • Wednesday 1 x 100mg test prop / 1 x 50mg Masteron
  • Friday 1 x 100mg test prop / 1 x 50mg Masteron
  • 50mg Winstrol daily
  • AI (Aromatise inhibitor)
  • Weeks 8 – 10 PCT

More Experienced Masteron Cycle

Weeks 1 – 8

  • Monday 1 x 150mg test prop / 1 x 100mg Masteron
  • Wednesday 1 x 150mg test prop / 1 x 100mg Masteron
  • Friday 1 x 150mg test prop / 1 x 100mg Masteron
  • 75mg Winstrol daily
  • AI (Aromatise inhibitor)
  • Weeks 8 – 10 PCT

Advanced Masteron Cycle

Weeks 1 – 8

  • Monday 1 x 200mg test prop / 1 x 150mg Masteron
  • Wednesday 1 x 200mg test prop / 1 x 150mg Masteron
  • Friday 1 x 200mg test prop / 1 x 150mg Masteron
  • 100mg Winstrol daily
  • AI (Aromatise inhibitor)
  • Weeks 8 – 10 PCT

How To Inject Masteron

For a step by step guide on how to safely inject Masteron please see this article ‘How to inject steroids safely’.

Masteron cycle side effects
Sciroxx Mast Prop

What Are The Side Effects of Masteron

Any drug can have side effects and steroids are no different. Side effects of Masteron can come in various forms yet it is considered a relatively ‘safe’ steroid to use.

Side effects from steroids can affect the cardiovascular system, estrogenic and androgenic.

When using anabolic/androgenic steroids, it is essential to understand the risks associated with the use and also how to minimise the chances of them occurring. 

It is important to note that not everyone will experience side effects from steroids. It is essential to know and understand the risk associated with them, though. 

We can break down the side effects of Masteron into the following subjects;

  • Estrogenic side effects
  • Androgenic side effects
  • Cardiovascular side effects
  • Hepatotoxicity
  • Natural testosterone shutdown


Androgenic Side Effects Of Masteron

Masteron has been known to have quite a strong androgenic effect on the body. Users report breakouts of acne on the back and shoulders, as well as oily skin and increased growth of body and facial hair.

If you suffer from male pattern baldness it is possible Masteron will increase the rate at which you are losing hair.

Estrogenic Side Effects

Masteron has a very low rate of aromatisation. Users will rarely suffer from estrogenic based side effects from Masteron. Many people have actually reported on a cycle that running Masteron helped keep the aromatisation of other steroids at bay without needing to use an AI.

Cardiovascular Side Effects

Masteron can affect cholesterol levels by reducing HDL or ‘good cholesterol’ and increasing LDL ‘bad cholesterol’. This shift, over time, can result in the hardening of the artery walls and higher levels of fat in the bloodstream leading to strokes, or heart attacks if left unchecked and untreated.

The increase in muscle mass and weight can also lead to higher blood pressure which can again, affect the heart and kidneys.

Running Masteron can also affect your blood ‘thickness’, by increasing your red blood cell count. 

It is highly recommended for anyone thinking about running a cycle, or who has already run one to get blood tests done at least every three months. This not only allows you to know what is going in regards to your health but also make any necessary adjustments before starting.

Does Masteron affect the liver?

Running Masteron should not have any direct impact on the liver.

It is important to note, though, high dose cycles or prolonged cycles could push liver markers beyond normal levels.

Natural Testosterone Shutdown 

Using any form of steroid will lead to the suppression of your natural test production. This often returns after the cycle has stopped. In rare cases or when users have been on cycle for prolonged periods, people can be shut down permanently or suffer from low testosterone levels for many years.

PCT ancillaries such as HCG can help keep the testes stimulated and producing natural testosterone. It is usually taken as a part of a PCT (post cycle therapy).

Benefits of using Masteron

  • Great for lean muscle gains
  • Very low chance of side effects
  • Works fantastic on people with low body fat
  • Fantastic for pre-competition
  • Can bring a harder, grainier look to the muscle

FAQs on Masteron Prop

Will Masteron help with gyno?

Masteron does indeed have anti-estrogenic properties. However, it may not help with gynecomastia which is already significant.

It would be far more resourceful to use anti-estrogens and SERMS to manage estrogenic side effects than relying on Masteron alone.

Can Masteron be taken alone?

It can be taken alone, however, you will likely be disappointed with the results unless you are at a low body-fat with a respectable level of muscle.

Masteron is quite a mild steroid and works to bring a better overall look pre-contest when other drugs are also being used in combination to deliver a final and more complete, dense look.

Does Masteron retain water?

Masteron has a very low androgenic rating. It doesn’t readily convert to estrogen and as such any water gain associated would likely be due to other substances in your cycle, or your Masteron isn’t Masteron.

Does Masteron cause hair loss?

It can increase the rate at which you lose hair if male pattern baldness runs in your family or you are predisposed to hair loss.


Masteron is often overlooked in the world of performance-enhancing drugs. This is mainly down to its mild nature, people often are not in the right ‘phase’ or in the best condition to really see what it can do.

When a user has relatively low body fat and is looking for that final push to bring an overall better package to the stage then Masteron really comes to shine. In terms of side effects, it is quite manageable and even has some anti-estrogenic properties of its own. 

Overall, Masteron will make a great addition to a cycle and works fantastically synergistically with other compounds.






Related Articles

What is Parabolan?

Trenbolone Hexahydrobenzylcarbonate  Parabolan is probably known as one of, if not, the most potent muscle building steroid on the market. Yet, you may never have heard of it. If you have heard of it, it is likely to be more of a myth then being able to get your hands on it. The hexahydrobenzylcarbonate ester … Continue reading "What is Parabolan?"

What is Masteron Enanthate?

Drostanolone Enanthate   Masteron enanthate is a performance-enhancing drug most commonly associated with pre-competition cycles. It is very subtle in its effects and works synergistically with other drugs to help create an overall leaner and denser physique. Athletes, especially those involved in sports which require bouts of speed also favour Masteron enanthate thanks to its … Continue reading "What is Masteron Enanthate?"

What is Proviron?

What is Proviron? Proviron is an entirely different concept when it comes down to what one would assume they know about steroids. After all, it is a steroid, its effects, however, are very mild and its use is very specific. Proviron could even be considered more of a supplement than a direct steroid. After all … Continue reading "What is Proviron?"