Mesterolone, commonly known as Proviron, is an oral androgen used to support muscle hardness and boost free testosterone levels without causing estrogenic side effects. It is often used as an adjunct in anabolic steroid cycles to counter estrogenic effects and enhance muscle definition.
Mesterolone enhances muscle density and prevents estrogen-related side effects, making it a valuable addition to both bulking and cutting cycles.
Indications for Athletes:
- Muscle Hardness: Adds muscle definition and vascularity.
- Anti-Estrogenic Effects: Reduces estrogenic side effects, often used to support hormonal balance.
- Testosterone Boosting: Increases free testosterone levels, supporting strength and performance.
How It Works:
Mesterolone binds to sex hormone-binding globulin (SHBG), increasing free testosterone in the bloodstream. It does not aromatize, so it helps reduce estrogenic side effects in cycles, adding a harder, more defined look to muscle.
Dosage and Administration:
- Typical Dosage: 25–50 mg daily.
- Cycle Duration: Can be used throughout an anabolic cycle or as a bridge between cycles.
Possible Side Effects:
- Common: Mild aggression, acne, and hair thinning in predisposed individuals.
- Serious: Potential prostate issues with long-term use.
Storage:
Store in a cool, dry place at room temperature (20°C to 25°C), away from direct light and moisture.
Conclusion:
Mesterolone is ideal for athletes looking to enhance muscle hardness, improve testosterone levels, and manage estrogen-related side effects without risk of aromatization.