Proviron (Mesterolone) is an interesting anabolic steroid, although it does not have much to offer if we want to achieve fast and spectacular gains. It seems that the most common reason when athletes reach for it is to include it in the steroid cycle with other agents, and it will be useful to us because of anti-estrogen activity.
Most steroids tend to aromatize, Proviron obsessively like clomid / tamoxifen defends us against it. However, the effect is actually only marginal, and there are many more better anti-estrogenic agents on the market today. When they are used, there is no need to use Proviron as an anti-estrogen.
The mechanism of action of Proviron in this case looks like this, through a certain efficiency of combining with the estrogen receptor, without activating, and using the aromatase enzyme. In the first case, it partially reduces the number of available receptors temporarily binding estrogen, thereby reducing estrogenic activity. In the latter case, some fractions of aromatase molecules at a given moment are not available for binding and conversion of testosterone, their binding sites are occupied by Mesterolone. 
The second most common reason why you should use Proviron is probably that we are afraid that our libido may be lost. It is true that when added to the normal level of androgen, Proviron has such an effect that in many cases it increases libido. However, most anabolic steroids also have the same properties. In the case of anabolic steroids such as Nandrolone (Deca), which unfortunately can adversely affect libido, Proviron provides greater help in eliminating these negative effects, so we do not have to worry about our libido.
Mesterolone is an active substance called Proviron
Proviron , identical to DHT, is an intensely androgenic steroid that does not aromatize to androgens. In clinical use, Provirone is used to combat sexual dysfunction. The reason for their formation is the low level of endogenous testosterone. Occasionally, it is used to increase the amount of sperm. The agent does not stimulate the body to produce natural testosterone. It is an oral substitute for androgens whose task is to supplement the deficiencies of natural androgen in men.
Operation and application of Proviron
Despite its dynamic androgenic nature, the anabolic effect used to create muscle mass is considered to be negligible. The reason is that Proviron instantly turns into a „dormant“ metabolite. In fact, due to its high capacity to bind plasma proteins, such as SHBG, Proviron activates other steroids. Athletes use Proviron as an antiestrogen. Its activity in the human body is considered anti-aromatizing, which counteracts or inhibits the conversion of steroids to estrogens.
The effects can be combined with Armidex (but smaller), a compound that counteracts the accumulation of estrogens in the body. This is in opposition to Tamoxifen – a blocker of estrogen possibilities for binding and activation of receptors in some tissues. Proviron shows significant anti-polarization, due to its immediacy and effectiveness in difficulties with estrogenic negative symptoms.
The disadvantage of Nolvadex is the fact that the „mirror“ effect can occur at a hasty, very quick stop. A large amount of estrogen in the serum is still ready to start working. Unfortunately, this may be associated with the intense appearance of negative effects in the form of water retention and gynecomastia. Many athletes really prefer to use Tamoxifen and Provirone at the same time, especially during strong estrogen cycles. Each of these drugs targets estrogen in a different way, which ultimately minimizes side effects.
The best use of Proviron
This agent is usually used during competitions, when a small estrogen level and a significant condition of androgens are needed. It is extremely desirable, or Winstrol are used „on the second track“ as androgenic. The level of these drugs is then quite weak, and Proviron will level the androgen state and will increase the density and stiffness of the muscles. Only one tablet a day (25 mg) of Proviron, especially in women, can dynamically „rearrange“ the combination of androgens to estrogens and achieve a positive effect in body composition.
Side effects of Proviron's actions
However, you have to keep in mind and be sensitive to the fact that it is a strong androgen. I can show a generous dose of virilization – an increased amount of male sex hormones. And that's why women can not increase the dose (just one pill a day). In addition, they can not take them for more than a month, up to five weeks. One tablet taken in tandem with ten or twenty grams of Tamoxifen may be more effective in stiffening the muscles. Then a state arises when the body is more susceptible to burning excess fat (especially in women on the thighs and hips).
The usual amount for men is also 25 mg for one day. This is a dose that effectively prevents gynecomastia. The specificity is used many times during the entire period of a strong cycle. Proviron often „couples“ with Clomiden or Tamoxifen at the time of the use of highly estrogenic steroids – Testosterone, Metanabol. Taking 20 mg to 50 mg of Tamoxifen and Proviron was very effective, and stronger doses were needed very rarely. The androgenic side of Proviron is particularly valuable during pre-competition training.
Proviron makes a strong muscular rock formation while burning a larger dose of fat. Proviron is well-tolerated by the body and does not cause negatives at a dose no higher than 100 mg for one day. Its possible unwanted effects, resulting from androgenicity, can manifest itself in the form of: acne, oily skin, male baldness.
