Primobolan (metenolone) is a DHT-derived anabolic steroid first synthesised in the 1960s and known for its unusually favourable anabolic:androgenic ratio. Unlike testosterone and many other AAS, Primobolan does not aromatise to oestrogen (no 17α-alkyl group susceptible to CYP19 aromatase), does not strongly bind SHBG, and has relatively low 5α-reductase activity — producing a clean androgen receptor agonism profile well-suited for research isolating anabolic AR effects from androgenic confounds.
QSC stocks research-grade metenolone at ≥99% HPLC purity. Available in acetate form (oral bioavailability) and enanthate form (ester for extended release research). All products sold for in vitro laboratory research only.
Primobolan (metenolone) is a synthetic anabolic-androgenic steroid — a DHT (dihydrotestosterone) derivative with a high anabolic:androgenic ratio. Available as metenolone acetate (oral) and metenolone enanthate (injectable). It is notable for its relatively mild androgenic profile combined with meaningful anabolic activity, making it widely researched in lean muscle mass and androgen receptor biology models.
How does Primobolan work?
Primobolan (metenolone) is a 5α-reduced androgen that binds the androgen receptor with high affinity but relatively low androgenic activity. It does not aromatise to oestrogen and does not interact significantly with SHBG, making it useful for androgen research without confounding estrogenic effects. Primary mechanism: AR activation → transcription of anabolic genes (IGF-1, MGF, nitrogen retention).
What is Primobolan used for in research?
Research applications: androgen receptor pharmacology (AR binding, downstream transcription, dose-response), lean muscle mass models (anabolic without significant androgenicity), comparative AAS research (mild androgenic profile vs testosterone, trenbolone), SHBG modulation studies, and nitrogen retention research.
Where can I buy research-grade Primobolan?
QSC (qsc-usa.com) stocks research-grade metenolone (Primobolan) at ≥99% HPLC purity with Janoshik COA. Ships from US Domestic Warehouse in 2–4 business days. Sold for in vitro laboratory research only.
Buy Research-Grade Primobolan
≥99% HPLC · Janoshik COA · US Domestic 2–4 Days · Research Use Only
Research Use Only: Primobolan is sold by QSC strictly for in vitro laboratory research. Not for human or veterinary use. Not FDA approved for clinical application.
