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Provironus 25 mg (Mesterolone)

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  • Stock: In Stock

  • Package: 50 Tabs

  • Type: TAB

Active ingredient: Mesterolone

Type: Anabolic steroids (derived from DHT)

Form: Oral (pills)

In Stock

  Security policy

Anonymous packaging (cosmetic company)

  Delivery policy

Delivery time to EU 5 - 10 business days. Delivery time to US 7 - 14 business days.

What is Mesterolone?

Mesterolone, marketed as Proviron, is an orally active androgen and anabolic steroid (AAS) primarily used to treat low androgen levels and associated symptoms, such as low libido. It is also sometimes used to treat male infertility, although this application is controversial.

Mesterolone is typically sold in 25 mg tablets, but varying concentrations can be found online.

Unique among AAS, Mesterolone is not an esterified form of testosterone and does not convert into estrogen in the body. This makes it particularly useful for therapeutic applications without the side effects associated with estrogen.

It is best used for men with clinically diagnosed androgen deficiency, where the benefits of treatment outweigh the risks. It can also help with a deficiency of the enzyme 5-alpha reductase, which reduces testosterone to dihydrotestosterone (DHT), an important neuroandrogen. Proviron effectively penetrates the blood-brain barrier and stabilizes androgen receptors in the brain, making it beneficial for enhancing libido and treating depression.

Benefits of Mesterolone

  • Androgen Replacement: Proviron can supplement androgen levels in men with androgen deficiency or hypogonadism, alleviating symptoms like reduced libido, depression, fatigue, and loss of muscle mass.
  • Enhanced Libido and Sexual Function: Proviron can improve libido and sexual function due to its direct androgenic properties.
  • Psychological and Physical Well-being: Increased androgen levels from Proviron can improve mood, energy levels, and physical condition by supporting muscle mass and strength.
  • Fertility Support: Proviron can improve sperm quantity and quality in some men with fertility issues by increasing luteinizing hormone (LH) and follicle-stimulating hormone (FSH) levels.
  • Use in Sports: Athletes use Proviron for its muscle-hardening effect, enhancing the potency of other steroids by reducing SHBG (sex hormone-binding globulin), and maintaining libido off-cycle.

Side Effects

  • Hair Loss: Accelerated in individuals predisposed to male pattern baldness.
  • Mood Changes: Possible irritability or heightened aggression.
  • Liver Toxicity: Risk of liver damage with prolonged use, though less common than with other oral steroids.
  • Prostate Enlargement: Increased prostate size, posing risks for individuals with prostate cancer.
  • Cardiovascular Issues: Potential risk of cardiovascular problems, including changes in cholesterol levels.
  • Virilization in Women: Significant risk if used by women, leading to deepening of the voice, increased body hair, and menstrual cycle changes.

Cycles and Dosage

  • Usual Daily Dosage: Starts at 25 mg and can be increased up to 100 mg.
  • SHBG Reduction: 50 mg/day is typically sufficient.
  • Libido Increase: Starts at 50 mg/day.
  • Dosages Over 25 mg: Should be divided into two intakes.

Contraindications and Precautions

  • Prostate or Breast Cancer: Should not be used as androgens can accelerate cancer cell growth.
  • Blood Pressure: May cause an increase, consult a doctor before use.
  • Other Conditions: Hypercalcemia, pregnancy, breastfeeding, liver disease, heart disease, and heart failure.


  • Temperature: Store at room temperature (20°C to 25°C / 68°F to 77°F).
  • Conditions: Keep in a dark place away from light and moisture. Avoid freezing and keep out of reach of children and pets.

Why Choose Us?

Driada is a trustworthy online store committed to maintaining honesty and integrity. Our products are lab-tested, ensuring quality and safety. You can find lab test results on our website's product pages.

Where to Buy Mesterolone 25 mg?

While Mesterolone is difficult to find in pharmacies, you can order it online at the Driada Medical shop or from official dealers.

Why Buy It?

Mesterolone is ideal for reducing SHBG, increasing libido, androgen levels, and improving mood without significantly impacting the hormonal system.


  • Effect Onset: Effects are noticeable after a few days, with the full effect by the end of the first week.
  • Overdose Risks: Although rare, overdose can amplify side effects.
  • Legality: Mesterolone is not classified as a narcotic, but its purchase might be restricted to prescriptions in some countries.
  • Use by Women: Not recommended due to virilization risks. Some female athletes use it for a lean form, but this is not advised for women's health.
  • Additional Side Effects: Possible acne and increased libido, which may become problematic for some users.