Mastaplex 100, containing Drostanolone Propionate, is an injectable anabolic-androgenic steroid (AAS) at 100 mg/ml in a 10 ml vial from Axiolabs. Known as Masteron, it's used in bodybuilding for cutting cycles to enhance muscle hardness and definition. It has low hepatotoxicity, does not aromatize, and has a moderate anabolic-to-androgenic ratio (~62:25 vs. testosterone's 100:100).
Mastaplex 100 enhances muscle hardness and strength by promoting protein synthesis and nitrogen retention. Its anti-estrogenic properties prevent water retention and gynecomastia, making it ideal for cutting. It also supports fat loss, contributing to a shredded, vascular physique. Users notice improved definition and strength within 1-2 weeks.
Mastaplex 100 can be safe when used responsibly under professional guidance, but risks include testosterone suppression, androgenic effects (e.g., acne, hair loss), and potential cardiovascular strain. Regular bloodwork to monitor testosterone and lipid levels is essential. Not recommended for beginners, women (due to virilization risk), or those with cardiovascular issues without medical oversight.
Drostanolone Propionate has a half-life of approximately 2-3 days, requiring every-other-day injections. It remains detectable in the body for about 3-4 weeks, depending on dosage, metabolism, and testing methods. Bloodwork and professional guidance are advised for precise clearance timelines.
Drostanolone Propionate binds to androgen receptors (AR), promoting protein synthesis and nitrogen retention for muscle hardness and strength. Its anti-estrogenic properties inhibit aromatase, preventing estrogen-related side effects like water retention or gynecomastia. The fast-acting propionate ester ensures rapid effects. Users notice enhanced definition within days. What doesn't happen: no significant mass gain or estrogenic effects, but testosterone suppression requires monitoring.
Mastaplex 100 excels for bodybuilders in cutting cycles, requiring a calorie-deficit, high-protein diet and intense training to maximize its hardening and fat-burning effects.
Best for experienced bodybuilders seeking muscle definition and strength in cutting cycles; suitable for men. Not recommended for beginners, women (due to virilization risk), or those with cardiovascular issues.
| Substance | Drostanolone Propionate |
|---|---|
| Concentration | 100 mg/ml |
| Form | Injectable vial |
| Pack Size | 10 ml |
| Half-life | ~2-3 days |
| Aromatization/Hepatic | Non-aromatizing / Low hepatic |
| Primary Use | Muscle definition, strength, fat loss |
| Manufacturer | Axiolabs |
| Brand | Masteron |
Mastaplex 100 is typically cycled for 6-10 weeks due to its fast-acting nature. A common protocol is 300-500 mg/week for men, split into EOD injections (e.g., 100-150 mg EOD). Stack with Testosterone Propionate for hormonal balance or Winstrol for enhanced cutting. Start PCT 3-5 days after the last injection, using tamoxifen or clomiphene for 4-6 weeks. Bloodwork guides dosing and PCT timing.
Testosterone Propionate: Maintains hormonal balance and enhances gains.
Winstrol: Amplifies fat loss and muscle definition.
Anavar: Supports lean muscle preservation in cutting.
Cycle Support: Supports lipid and cardiovascular health.
Mastaplex 100 vs Winstrol: Mastaplex 100 offers anti-estrogenic effects and hardness; Winstrol is stronger for fat loss but may stress joints.
Mastaplex 100 vs Trenbolone: Mastaplex 100 is milder with anti-estrogenic benefits; Trenbolone is more potent but harsher.
Mastaplex 100 vs Primobolan: Mastaplex 100 is faster-acting; Primobolan is milder with less androgenic activity.
Review labs with a professional where lawful to ensure authenticity and safe dosing.
Start PCT 3-5 days after last injection due to short half-life; use tamoxifen (20-40 mg/day) or clomiphene (50-100 mg/day) for 4-6 weeks. Bloodwork guides HPTA recovery, ensuring sustained gains and hormonal balance.
What is Mastaplex 100?
Mastaplex 100 is an injectable anabolic steroid (Drostanolone Propionate) for muscle hardness and definition; see What is Mastaplex 100. It's effective—consult professionals for safe use.
What does Mastaplex 100 do?
It promotes muscle hardness, strength, and fat loss; see What Does Mastaplex 100 Do. It enhances physique—monitor with labs.
Is Mastaplex 100 safe?
It can be safe with responsible use, but risks include testosterone suppression and androgenic effects; see Is Mastaplex 100 Safe. Consult professionals for oversight.
How do I take Mastaplex 100?
300-500 mg/week, injected EOD; see How to Take Mastaplex 100. Start low—consult professionals for dosing.
How to cycle Mastaplex 100?
6-10 weeks, 300-500 mg/week, PCT after 3-5 days; see How to Cycle Mastaplex 100. Stack with testosterone—consult professionals.