Mesterolone 50 tab. (25 mg/1 tab.)


Mesterolone from Hilma Biocare is still widely used in medicine and sports. In medicine, it is mainly used to treat androgen deficiency conditions or male infertility associated with primary or secondary male hypogonadism. In bodybuilding and sports, Masterolon, also often called Proviron, is known for its excellent benefits in acute and post-course therapy. Mesterolone enhances fat loss by binding to androgen receptors and enhances the action of other anabolic steroids, which makes it ideal for preparing for competitions.



Using Mesterolone, athletes can overcome dead spots, increase the density and relief of muscles, increase the effectiveness of testosterone, improve fertility and sexual desire. In addition, it serves as a mild antidepressant that stimulates positive emotions.


  • Active half-life period (hours): from 9 to 12 hours
  • Use (men): 50 to 100 mg/day
  • Saves water: no
  • Flavoring: no

In many ways, Mesterolone is a unique anabolic steroid. It has some similarities with Masteron (Drostanolone) and to some extent with Oxandrolone (Anavar) and Stanozolol (Winstrol), but overall it is a unique animal. From a performance perspective, Proviron is not used for rapid mass gain, although it can serve an important purpose at this stage of training. We will, however, find that Mesterolone is much more often used in drying cycles, but again its purpose will be somewhat unique.

Dosage and method of application of Mesterolone

  • The usual cycle length is 6-12 weeks
  • Beginners: not recommended
  • Hobbies: 25-75 mg/day
  • Professional range: 25-150mg/day
  • Women: 25 mg/day
  • Half-life: 8-12 hours
  • Detection time: 5-6 weeks

Effects of taking Mesterolone

  • It is best to use Mesterolone during the cut-off period.
  • In the off-season, it is at this time that most use the largest amount of testosterone, but most men have no place for it in the off-season cycle.
  • Many will use large amounts of testosterone during cutting cycles, especially competitive bodybuilders, but lower testosterone plans are more common during the cutting phase.
  • Improves testosterone potency
  • Reduces the level of circulating estrogen due to the inhibition of the aromatase enzyme, which converts testosterone into estrogen (this helps to avoid the side effects of estrogen caused by other anabolic steroids)
  • The ability to increase the density and hardness of muscles.
  • It is used in many different hormonal cycles to prevent the development of side effects
  • They help a person to overcome the point of stumbling.
  • Use of Mesterolone (Proviron) in bodybuilding

    Proviron is most often started to be taken on the 3rd-4th week of the course. Often, they begin to accept the ego even in the first week.

    As we have already said, for men the normal dose of the drug is 75-150 mg, for women – 25 mg. But usually athletes overestimate the dosage, increasing it to 250 mg and 50 mg, respectively. This is the maximum permissible value at which side effects can still be avoided. If the specified value is exceeded, then the drug, instead of reducing the harmful effects of anabolics and preserving libido and normal erection, can lead to a long painful erection. This is a signal to reduce the amount of the drug per day.

    The dose is divided into two or three doses. The tablet should be swallowed whole with plenty of liquid.

    These are general recommendations for taking Proviron during the course of anabolics, and after the course, to select an individual dosage, it is necessary to consult with a specialist.

    Also, before taking it, you should visit a doctor and make sure that you have no contraindications, no tumor processes, no increased level of calcium in the blood, diabetes, epilepsy, cardiovascular diseases, kidney or liver diseases, hypertension, migraines and other diseases. In all these cases, it is strictly forbidden to take the drug.

    Even completely healthy people should not start taking Proviron with high doses.

    Proviron, as it became known above, should not be taken during PCT. It is able to suppress the natural production of sex hormones in approximately every third person taking this drug.

    • Mesterolone preserves and strengthens muscle mass, does not retain fluid in the body, and also neutralizes the consequences of taking anabolics. If you use the drug, you need to regularly take tests and undergo examinations. Among the main ones:
    • Ultrasound examination of the prostate gland,
    • routine testing of prostate markers,
    • hematological and biochemical analyses,
    • Examination of the male reproductive system,
    • Abdominal ultrasound examination.

    If you experience pain or discomfort, you should immediately consult a doctor.

    Side effects

    The most common side effect of Mesterolone is the temporary cessation of testosterone reproduction.

    Method of storage

    Store in a dry place, protected from light, at a temperature of 15-25 C. Store in a place inaccessible to children.

    Compatibility with other drugs

    Mesterolone performs the function of an androgen and can be safely used in combination with HGH and other anabolic steroids to compensate for the lack of testosterone in the cycle. It can be enhanced with clomiphene and tamoxifen for complete suppression of estrogen.


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