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Proviron Profile
[1 alpha-methyl-17 beta-hydroxy-5 alpha-androstan-3-one]
Molecular Weight: 304.4716
Molecular Formula: C20H32O2
Melting point: N / A
Release date: 1960
Effective dose: 25-200 mg / day.
Active lifestyle: up to 12 hours
Detection time: 5-6 weeks
The ratio of anabolic steroids and androgens: 100-150: 30-40

Proviron is one of the oldest anabolic androgenic steroids on the market. A product of the giant pharmaceutical company Schering, it first appeared in 1934. Officially known as Mesterolone, it has been marketed under numerous brand names over the years, but the name Proviron has consistently remained dominant. It also remains one of the most misunderstood anabolic steroids among steroid users.

In many ways, Proviron is a very unique anabolic steroid. It shares some strong similarities with Masteron (Drostanolone) and to some extent Anavar (Oxandrolone) and Winstrol (Stanozolol), but overall it is a unique animal. From a performance standpoint, Proviron is not used for weight gain, although it can serve an important purpose during this phase of training. However, we will find that Proviron is much more commonly used in trimming cycles, but again its purpose will be somewhat unique.

Possible Side Effects

The hormone mesterolone can have a profound effect on HDL and LDL cholesterol. Studies have shown that this steroid has the ability to lower HDL (good) cholesterol by over 30% and raise LDL (bad) cholesterol by over 60%. It is very possible to use Proviron without causing serious cholesterol problems, but it does take some effort. A diet that is as cholesterol-friendly as possible is absolutely essential. This should include a lot of omega fatty acids; you should take large amounts of fish oil every day. A person’s diet should also be extremely limited to saturated fats as well as simple sugars. When using Proviron, a cholesterol antioxidant is also recommended. This is annoying to some, but you should also include a lot of cardiovascular workouts in your routine. If you intend to use this steroid, you are strongly advised to follow these guidelines. If for some reason you are unable to do this, you should not use this anabolic steroid.


The hormone mesterolone is not estrogenic. It does not aromatize and does not carry a progestin nature. As a result, the side effects of Proviron will not include any related effects such as gynecomastia or excess water retention. Such side effects are not possible with this steroid. It will also significantly reduce the risk of high blood pressure, as the high blood pressure associated with anabolic steroid use is often due to excessive water retention. In fact, Proviron is supposed to have an anti-estrogenic effect, preventing testosterone from converting to estrogen, or at least slowing it down significantly.


The side effects of Proviron can be androgenic in nature. This should come as no surprise when you consider that the main purpose of this steroid is androgenic action. Such side effects of Proviron may include acne, accelerated hair loss in individuals prone to male pattern baldness, and body hair growth. Such effects are highly dependent on genetic predisposition. For example, those who are not genetically predisposed to male pattern baldness will not lose their hair. Those who are not sensitive to acne should have no problem with breakouts. It is also important to note that the 5-alpha reductase enzyme does not metabolize the hormone mesterolone. There is no conversion to DHT, this is already DHT, and as a result, 5-alpha-reductase inhibitors such as finasteride will practically not affect the androgenicity of the steroid.

Due to the strong androgenicity of Proviron, it leads to severe virilization in women. This can and is likely to include growth of body hair, deepening of the vocal cords, and enlargement of the clitoris. Women are strongly discouraged from using this anabolic steroid. There are several steroids that have much lower virilization ratings, such as Anavar and Primobolan. Such steroids should always be preferred for women.


Cardiovascular stress, especially cholesterol problems, will be the most dangerous side effect of Proviron. This anabolic steroid can negatively affect cholesterol to a much greater extent than most anabolic steroids. If you have high cholesterol levels, you should not touch this steroid. If you are healthy enough to use, you need to keep a close eye on your levels.


All anabolic androgenic steroids suppress natural testosterone at some level. The rate of suppression varies greatly between steroids, and with Proviron, it can be very minimal. Research has shown that the use of the hormone mesterolone is more than possible without significantly reducing natural testosterone production. This does not mean that it is not suppressed at all, it just means that it is minimal and rather inconsequential. A total dosage of 150 mg per day or less should not have a noticeable effect on natural testosterone production. As the total dose begins to increase beyond this mark, the rate of suppression will also increase. However, there is really no benefit in increasing the dosage above 150 mg per day for any man.

Due to the minimal suppression of testosterone, this anabolic steroid can be used without exogenous testosterone, or at least very minimal amounts. A person can implement the Anavar cycle along with Proviron and keep their testosterone levels from falling to a very low range. However, most of them will use other anabolic steroids that strongly suppress natural testosterone production, along with Proviron, making the use of exogenous testosterone a must. Those who do not turn it on will lead their body to low testosterone levels. This condition can be accompanied by numerous unpleasant symptoms and is extremely unhealthy.

Regardless of the specifics of the cycle, as soon as all anabolic steroids come to an end, natural testosterone production will begin again. Most people are advised to implement a post cycle therapy (PCT) plan at this stage. PCT will speed up the recovery process; however, it will not bring you back to normal by itself. Full recovery will take time, but without PCT, it will take much longer. With a PCT plan, you will ensure that you have enough testosterone for your body to function properly, while your levels will naturally rise over time. It must be written; natural recovery assumes the absence of a preexisting low testosterone condition. It is also assumed that the hypothalamus-pituitary-testis (HPTA) axis has not been seriously damaged by inappropriate use of anabolic steroids.


Despite being an oral anabolic steroid, Proviron is not liver toxic. It is not a C17-aa anabolic steroid and does not burden the liver with any stress or damage.


When you plan to use Proviron, you will find that it works well with all anabolic steroids. During the drying phase, it will be most beneficial when combined with steroids such as Anavar, Masteron, and Winstrol, as well as Primobolan. This will greatly contribute to the androgenic of these steroids to provide and contribute to the desired appearance. In the bulk phase, while it pairs well with all anabolic steroids, it’s hard to tell if you need it or not. Some will just keep it close at hand and turn it on when it turns out to be useful.

Ordering Proviron Online practise

Proviron is readily available on the pharmaceutical market in most of Europe and USA. Even as a pharmaceutical brand, it will be reasonably affordable in most cases. On the black market, Proviron for sale is also abundant and again very affordable. Another good news is that this steroid is rarely counterfeited. You will also find many underground laboratories that contain Mesterolone; however, not as common as many anabolic steroids for sale. Either way, you won’t have any trouble finding this anabolic steroid. The supply of Proviron is huge; it is a relatively cheap and lightweight anabolic steroid.


When used correctly and with an understanding of the hormone, Proviron can potentially change many of your cycles. Will this be the end of everything that radical transformation will see? Probably not, but it will provide benefits not available with other steroids and will simply end your cycle in a way that makes it difficult to beat.

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