Substance: Drostanolone Propionate
Manufacturer: Zzerox Pharmaceuticals
Pack: 10 x 1ml amp (100mg/ml)

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What is Mastorox? | What is Masteron? | What is Drostanolone Propionate?

Mastorox is the brand name of the active substance Drostanolone Propionate or it might be better known as Masteron or Masteron Propionate. Drostanolone is the active substance with the Propionate attached ester, but there’s also a longer based Drostanolone compound with Enanthate attached ester – Drostanolone Enanthate or brand name Masteron Enanthate.

Mastorox is actually the exact same steroid as Masteron, the only difference between the 2 is how the steroid is called – its brand name. Other than that, Mastorox is much cheaper in price than Masteron but it remained of the same high quality offering Drostanolone Propionate as the main ingredient.

The great benefit of Mastorox is that you can get it for a very low price, much lower compared to Masteron, and yet still receive the same high quality steroid. This brand is manufactured by Zzerox Pharmaceuticals and the manufacturing process is under GMP Standards, ensuring high quality Drostanolone.

Drostanolone Propionate was firstly described many years ago in 1959 and in the past it used to be given as a treatment for breast cancer for women, however, nowadays this compound is no longer used for medical uses. Yet, this compound is very widely and extremely popular in fitness industry by steroid users.

This is a dihydrotestosterone derived androgenic and anabolic steroid and is being used for various needs, mainly for cutting and hardening purposes, but is a very unique steroid of its type which can be used even as an aromatase inhibitor.

Drostanolone is considered more like a cosmetic drug which is why is very often used as a finisher during a cutting cycle as it would offer an amazing body look. Despite the fact that this compound, on paper, is by far not as powerful and potent as other anabolic steroids, the product is still very widely used and very popular. Below you would understand why so.

Mastorox Uses | What Does Masteron Do? | What is Drostanolone Used For?

As it was mentioned, in the past, Masteron or Mastorox containing Drostanolone (with Propionate ester) was used for treating breast cancer in females, however the product isn’t used for this purpose anymore. Instead, is very widely used for physique and performance enhancement purposes, either as a booster, fat burning agent and aromatase inhibitor.

Why would people use so much a product that is so low in potency according to the numbers on the paper? First off because it can be super effective as numbers on paper might only fool you into making you think that Masteron is weak and second because it a very unique steroid with unique properties.

The anabolic to androgenic ratio of Masteron – Mastorox (Drostanolone) is only 62:25 and that’s much lower compared to Testosterone which same numbers goes as 100:100.

Drostanolone is used with great success during cutting and hardening cycles when the individual is already having quite a low body fat percentage. There is not a better product for hardening your muscles than Drostanolone, however if you’re having too much fat covering those muscles – the product is ineffective. Instead, it has unique properties which might greatly help you to lose weight.

Also, the product is not effective and suitable for bulking up due to its low anabolic activity. However, it can be a great aromatase inhibitor while working for boosting the effectiveness of other wet steroids. Therefore, the bulking steroids get you big while Drostanolone counteracts the estrogen related side effects and enhances the effectiveness of the other steroid.

This steroid is strongly binding to the SHBG – a hormone that is making other steroids inactive and by doing so, it would enhance the effectiveness of other steroids. Using as a part of steroid stack is the best way to use Drostanolone in Masteron or Mastorox.

Mastorox Dose | Masteron Dosage | Masteron Cycle | Masteron Administration

Masteron – Mastorox with the Drostanolone that is having Propionate attached ester is considered to have a half life of about 3 days. As mentioned, there’s also Drostanolone Enanthate with about 8 days half life and there’s a different administration frequency.

Because of the short half life, is very recommended to use Mastorox on a daily basis. The average dosage per week of Drostanolone is about 400 up to 500 mg a week. Sometimes, users would go as high as 100 mg a week but that’s not recommended for everyone (only professionals who know what to do).

Taking this in consideration you need to split the total weekly dose in even doses to use every day. Cycle lengths with Masteron –Mastorox are usually 10 weeks. As mentioned, it can be used with great success for bulking cycles alongside with other steroids (because alone is ineffective) or for cutting cycles, then again alongside with other steroids.

The cycle type with Masteron greatly depends on what is the other type of steroid you decide to add (Usually testosterone for bulking and Winstrol for cutting).

Mastorox Adverse Effects | Masteron Side Effects | Drostanolone Propionate Side Effects

Mastorox or Masteron that is containing Drostanolone Propionate worst side effects are related with the fact that this is a DHT derived steroid which is leading to androgenic side effects such as hair loss, excessive hair growth on body and face, oily skin, acne and others.

Due to the same reasons, women are at high risk to get virilizing side effects, which means that they would be turned into men if the product would get abused.

Estrogenic side effects with Drostanolone are not possible which is quite obvious, especially taking in consideration that this is a very unique steroid which might actually work as an aromatase inhibitor product. Except for this, Drostanolone is not dangerous for the liver as liver hepatotoxicity is not possible.

Side effects with this compound aren’t really bad, in fact, they are by far not as bad as with other steroids, yet they are still possible if the steroid is abused. Negative effects on cardiovascular health and cholesterol are possible too. Natural testosterone production might get inhibited as well.

In the end, the worst side effects and the most common with Mastorox include: hair loss, acne and increased aggression.

Purchase Mastorox | Where to Buy Masteron? | Buy Drostanolone Propionate

Mastorox manufactured by Zzerox Pharmaceuticals can be purchased for an extremely low price directly from as a generic version of Masteron because both products are offering very high quality Drostanolone Propionate as the main ingredient. Customers shouldn’t be worried about the quality as the pharmacy is reputable for offering high quality with high purity products and check the prices to convince yourself that you can save a lot of money. offers discounts as well. Therefore, you save money while getting an amazing and very famous steroid – Drostanolone which can be used for many different purposes. This mainly cosmetic steroid can offer you a body look that many people can only dream about. However, this is still an amazing steroid which can greatly increase your performance levels too.


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