Disclaimer
CompoundIQ publishes research summaries for informational and educational purposes only. Nothing on this site constitutes medical advice, diagnosis, or treatment recommendations. Always consult a licensed healthcare provider. Many compounds listed are research chemicals not approved for human use.
Drostanolone Propionate
Also known as: Masteron, Mast P, Drostanolone
Drostanolone Propionate (Masteron) is a DHT-derived injectable anabolic steroid originally developed as an anti-estrogen treatment for breast cancer. In performance enhancement, it is highly valued for its hardening, drying, and anti-estrogenic properties, making it a staple in contest preparation and cutting cycles.
Risk Level
Medium RiskDifficulty
Intermediate| CAS Number | 521-12-0 |
| Molecular Formula | C23H36O3 |
| Class | Steroid |
| Category | Classic Steroids |
Mechanism of Action
A 2-alpha-methylated form of DHT that provides moderate anabolic effects with strong androgenic properties. Acts as a mild aromatase inhibitor, reducing estrogen conversion from other aromatizing compounds in a stack. Does not aromatize itself. Promotes a hard, dense, grainy appearance to muscle when body fat is sufficiently low.
Dosing Research
Typically dosed at 100 mg every other day (300-500 mg per week). The propionate ester requires frequent injections. Cycles are typically 8-12 weeks. Most effective when body fat is already below 12-15%, as its cosmetic effects are only visible at lower body fat levels. Often stacked with testosterone and trenbolone for contest prep.
Side Effects & Risks
Androgenic side effects are significant including accelerated male pattern baldness, acne, and body hair growth. Relatively mild cardiovascular impact compared to other steroids but still negatively affects lipid profiles. Suppresses natural testosterone production. Virilization risk in women is moderate to high. No estrogenic side effects.
Research Studies
Related compounds
Testosterone Enanthate
SteroidTestosterone Enanthate is one of the most widely used testosterone esters for hormone replacement therapy and performance enhancement. It features a long-acting enanthate ester that provides sustained release over approximately 1-2 weeks, making it one of the most convenient injectable testosterone formulations.
Testosterone Cypionate
SteroidTestosterone Cypionate is a long-acting testosterone ester very similar in pharmacokinetics to Testosterone Enanthate. It is the most commonly prescribed form of testosterone in the United States for hormone replacement therapy and is widely used in performance enhancement contexts.
Testosterone Propionate
SteroidTestosterone Propionate is a short-acting testosterone ester that requires more frequent injections than longer-estered variants. It provides faster onset and clearance, making it preferred for shorter cycles, contest preparation, or situations where rapid clearance is desired.
Oxandrolone
SteroidOxandrolone (Anavar) is one of the mildest and most well-studied oral anabolic steroids. Originally developed for medical use in burn patients, muscle wasting, and osteoporosis, it is valued in performance enhancement for producing lean, dry gains with minimal side effects. It is one of the few steroids prescribed to women and children in clinical settings.
Disclaimer
CompoundIQ publishes research summaries for informational and educational purposes only. Nothing on this site constitutes medical advice, diagnosis, or treatment recommendations. Always consult a licensed healthcare provider. Many compounds listed are research chemicals not approved for human use.