Description
Drostanolone (Masteron), Biotech Beijing, 25 mg. DHT-class anti-estrogenic anabolic with minimal side-effect burden relative to its visual impact. Low-bodyfat cutting staple; Propionate for EOD schedules, Enanthate for 2×-weekly flexibility.
Key Benefits
- DHT-derivative — dry, hard, vascular look with no water retention
- Anti-estrogenic side-activity — mild AI effect
- Cutting and pre-contest staple, especially at low body-fat
- Minimal sides at performance doses — clean compound
- Stacks well with tren, test, and orals for cutting recomp
- Each unit dosed at 25 mg — see Recommended Dosage below for protocol-specific intake
Recommended Dosage
Research dosing: propionate 300–500 mg/week split EOD or 3×/week; enanthate 400–600 mg/week split twice weekly. Cycles 8–10 weeks (prop) or 10–14 weeks (eno). Pre-contest protocols stretch to final 6 weeks before show.
How It Works
5α-reduced testosterone with a 2α-methyl group. DHT-derivative — does not aromatise. Mild anti-estrogenic activity via aromatase enzyme competition. High AR affinity. Androgenic but not aggressively so at typical doses.
Pharmacokinetics
Propionate ester: plasma half-life ~2 days. Enanthate: ~7 days. Prop needs EOD or M/W/F pinning; eno twice-weekly fine. Steady-state in 2 weeks (prop) or 4 weeks (eno).
Cycle & Stacking Guide
Cutting stack component, 8–14 weeks by ester. Classic pairing: test E 250 mg/week + masteron E 400 mg/week + (optional) tren or winstrol for final weeks. Works best at <15% body fat where the "dry" look actually shows.
Manufacturer Notes
Biotech Beijing is a Chinese producer with a long track record in both AAS and peptide markets. HPLC purity data available for peptide SKUs.
Storage & Handling
Store upright at 15–25 °C in the original box, protected from light and moisture. Oil-based injectables are shelf-stable for the duration printed on the vial when kept at controlled room temperature. Do not refrigerate — cold thickens the carrier oil and makes drawing/injecting harder. Keep out of reach of children. For research and educational purposes only.
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