Description
MESTEROLONE (PROVIRON) – BENEFITS AND DOSAGE
Mesterolone (most commonly known by its trade name: Proviron) is an oral androgenic steroid derived from dihydrotestosterone (DHT). It is known more for its androgenic than anabolic effects and is used both medically and in bodybuilding.
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Benefits of Mesterolone
Increase in Free Testosterone
Mesterolone does not convert to estrogen (zero aromatization), so it does not cause water retention or gynecomastia.
It binds strongly to SHBG (Sex Hormone Binding Globulin), increasing the amount of free testosterone in the blood.
Anti-Estrogenic Effect
Reduces estrogen-related side effects of other anabolic steroids.
Useful in cycles with Testosterone, Dianabol, or Nandrolone to maintain an optimal androgen/estrogen balance.
Greater Muscle Definition
Since it does not cause water retention, it helps maintain a drier, more defined muscle appearance.
Often used during cutting or definition phases.
Improved Libido and Sexual Function
Commonly used to counteract natural testosterone suppression caused by other steroids.
Can improve libido and erection quality.
Benefits for Male Fertility
Unlike many other steroids, Mesterolone does not significantly suppress spermatogenesis, so it is used to treat fertility issues.
Increased Strength and Mental Well-Being
Positive effects on energy, motivation, and focus thanks to increased androgen levels.
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Recommended Dosage
Goal | Dosage (mg/day) | Durée de l'accord |
|---|---|---|
Testosterone replacement therapy | 25–50 mg | Continuous |
Increased muscle hardness | 50–100 mg | 6–8 weeks |
Prevention of estrogenic effects | 25–50 mg | During the cycle |
Libido enhancement | 50 mg | 4–6 weeks |
Male fertility | 50–75 mg | By medical prescription |
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Side Effects
Although Mesterolone is generally well tolerated, it can cause some side effects:
Suppression of natural testosterone production (less severe than with other steroids).
Increased aggression and irritability.
Acne and oily skin (due to higher androgen levels).
Hair loss (if genetically predisposed).
Minimal liver effects, but should be avoided in cases of liver issues.





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