Chemical name: 1α-Methyl-17β-hydroxy-[5α]-androstan-3-one
Formula: C20H3O2
Anabolic activity index: 150%
Androgenic activity index: 40%
Overview: Proviron 25mg tablets contain the active substance Mesterolone, manufactured by Bayer, a renowned pharmaceutical company known for its high-quality products. Proviron is primarily used in the treatment of androgen deficiencies and male infertility issues caused by low testosterone levels. It is also employed in various medical conditions where androgen therapy is indicated.
Key Features:
- Androgen Replacement: Proviron serves as a synthetic derivative of dihydrotestosterone (DHT), providing androgenic effects that can help restore hormonal balance in individuals with androgen deficiencies.
- Anti-Estrogenic Properties: It has mild anti-estrogenic properties, making it useful in combating estrogenic side effects like water retention and gynecomastia during steroid cycles.
- Enhanced Anabolic Effects: It is sometimes used by athletes and bodybuilders to enhance muscle hardness and density, often in combination with other anabolic steroids.
- Maintenance Therapy: Proviron is also prescribed in certain cases to support testosterone replacement therapies, ensuring stable androgen levels over extended periods.
Usage and Dosage:
- Dosage: The typical dosage of Proviron for therapeutic purposes is 25 to 50 mg per day, often divided into 2 or 3 doses.
- Cycle Support: In athletic or bodybuilding settings, Proviron may be used in cycles ranging from 8 to 12 weeks, with dosages adjusted based on individual response and stacking with other compounds.
- Medical Supervision: Use under medical supervision is recommended, especially for prolonged usage or in cases of specific medical conditions.
Safety and Precautions:
- Monitoring: Regular monitoring of liver function and lipid profiles is advised during extended use.
- Contraindications: Proviron is contraindicated in individuals with known hypersensitivity to Mesterolone or any inactive ingredients in the formulation.
- Side Effects: Potential side effects include changes in libido, mood swings, and virilization symptoms in women if used inappropriately.
Storage:
- Storage Conditions: Store in a cool, dry place away from direct sunlight and moisture. Keep out of reach of children.










Connor Gallagher –
Proviron 25mg has become one of my preferred products. The tablets are convenient, the quality is exceptional, and the overall experience has been very positive. I experienced consistent support for my training goals and felt more motivated and energetic throughout the day. This is a dependable product from a manufacturer I trust.
Lorenzo Ricci –
I’ve had a fantastic experience with Proviron 25mg. The product quality is outstanding, and the results have been reliable throughout my use. I noticed improvements in workout intensity, overall confidence, and day-to-day energy levels. Bayer’s manufacturing standards are clearly reflected in this product, and I would gladly purchase it again.
Julien Moreau –
Proviron 25mg exceeded my expectations. One of the things I appreciated most was the sense of well-being and vitality I experienced while using it. My training sessions felt more productive, and I maintained a higher level of focus and motivation. The quality of the tablets was excellent, and the product performed exactly as expected.
Miguel Torres –
I decided to try Proviron 25mg because of Bayer’s reputation for quality, and it definitely lived up to my expectations. The product was easy to incorporate into my daily routine, and I appreciated the consistency of the effects. I felt more energized during workouts and experienced improved overall performance. The packaging was professional, and everything arrived in perfect condition.
Stefan Nilsson –
Proviron 25mg by Bayer has been an excellent product in my experience. The quality is exactly what I would expect from a trusted pharmaceutical manufacturer. After incorporating it into my routine, I noticed improved overall well-being, increased training motivation, and a greater sense of confidence. The tablets are easy to take, and the product has been consistent from start to finish.