

Masteroxyl 100 mg – Dry, Hard Muscle Definition Support
Active Ingredient: Drostanolone Propionate
Manufacturer: Kalpa Pharmaceuticals
Pack Size: 10 mL Vial (100 mg/mL)
Masteroxyl 100 mg is a premium injectable anabolic steroid containing Drostanolone Propionate, known for its strong cutting properties and anti-estrogenic effects. It's favored by physique athletes and competitors during pre-contest prep phases to help achieve a dry, defined appearance.
Manufactured by Kalpa Pharmaceuticals, this compound is trusted by advanced users seeking a lean, chiseled look with minimal water retention.
The recommended dosage of Masteroxyl ranges between 300–500 mg per week, often split into injections every other day due to its short ester (Propionate). Users may combine it with compounds like Testoxyl Propionate for synergistic effects without bloating.
For more details on Drostanolone's chemical profile and clinical data, refer to its listing on PubChem.
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Masteroxyl is typically recommended for intermediate to advanced users during cutting cycles. Beginners should consult with a professional and may prefer longer esters for simpler injection schedules.
No, Drostanolone Propionate does not aromatize, making the risk of gynecomastia extremely low. It may even have anti-estrogenic effects when stacked with aromatizing compounds.
Most users begin noticing improvements in muscle hardness and vascularity within 2–3 weeks of consistent use, especially when following a calorie-restricted diet.
Masteroxyl is often combined with Trenboxyl Acetate or Oxandroxyl for cutting, or with low doses of Testosterone Propionate for hormonal support.
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Jan 17, 2012 (14:59)
First time with his product....loved it. Libido up, sense of well being way up...even with tren in the mix. Had a little BPH issue which was handled with supps....good to go. Lean, dense gains. Pairs well with tren.