Mastabolan 200mg – SIS Labs




Mastabolan 200mg, also known as Drostanolone Propionate, is an anabolic-androgenic steroid (AAS) known for its significant role in cutting phases of bodybuilding. Manufactured by SIS Labs, a reputable entity in the pharmaceutical industry, Mastabolan is designed for those looking to enhance their muscle definition, strength, and overall physique without the burden of excessive water retention.

Mastabolan Effects

The allure of Mastabolan lies in its powerful effects which are highly prized among the bodybuilding community. It promotes a hard, defined muscular aesthetic which is essential during competition preparations. Here are some of the key benefits:

  • Enhanced Muscle Hardness and Definition: Mastabolan increases density and hardness of the muscles, leading to a more chiseled and sharp physique.
  • Fat Loss: While not a primary fat burner, Mastabolan assists in reducing body fat percentages when used alongside a proper diet and exercise regimen.
  • Strength Gains: Users often report significant increases in strength, enabling more intense workouts and heavier lifts.

A Mastabolan 200mg Cycle

A typical Mastabolan cycle lasts between 6 to 10 weeks, a period that is considered optimal for experiencing its full benefits without overly exposing oneself to potential side effects. It’s commonly stacked with other steroids like Testosterone Propionate for synergistic effects. However, the exact components and duration of your cycle should be tailored to your specific goals and experience level.


The recommended dosage of Mastabolan 200mg varies depending on your cycle’s structure, experience with AAS, and specific fitness goals. A common starting point is 200-400mg per week, split into two or three injections. Advanced users may increase their dosage but should proceed with caution and be mindful of the increased risk of side effects.

Side Effects

Like all anabolic steroids, Mastabolan comes with a risk of side effects, which can be managed with proper use and precautions. Some of the side effects include:

  • Androgenic effects such as acne, hair loss, and increased body hair growth.
  • Potential negative impacts on cholesterol levels.
  • Suppression of natural testosterone production, necessitating a post-cycle therapy (PCT) plan.


Feedback from users of Mastabolan 200mg is generally positive, with many highlighting its effectiveness in enhancing muscle hardness and aiding in fat loss. The most satisfied users are those who have used it as part of a well-planned cycle and have adhered to recommended dosages.