Masteron Propionate 100mg/mL is a drostanolone propionate injectable formulation in MCT oil supplied in a 10mL vial. Manufactured for consistency, stability, and research applications.
Format10mL Vial
Concentration200mg/mL
CarrierMCT Oil
Pay with Interac e-Transfer or Crypto
Ships from within Canada; No Customs
Discreet plain packaging; always
24h dispatch; Tracked Delivery
Drostanolone Enanthate, commonly known as Masteron Enanthate, is the long acting counterpart to Masteron Propionate; sharing the same DHT derived base compound while delivering a significantly extended release profile through the enanthate ester. F40 Biotech’s formulation delivers 200mg/mL in a 10mL multi dose vial using MCT (medium chain triglyceride) oil as the carrier base. A clean, low viscosity carrier that pairs well with a compound administered on a weekly or twice weekly basis, minimizing injection site discomfort across extended protocol periods.
The enanthate ester gives Masteron Enanthate a half-life of approximately 7–10 days, compared to Masteron Propionate’s 2–3 day half-life. Requiring only weekly or twice weekly administration to maintain stable blood concentration levels. This extended active window makes Masteron Enanthate the more practical format for longer duration research protocols where the every other day administration schedule of Masteron Propionate would be logistically demanding. CSD stocks Masteron in both propionate and enanthate ester presentations, giving researchers ester selection flexibility within the same base compound from a single verified Canadian supplier.
Masteron’s most distinctive research characteristic is its documented aromatase inhibitor activity, as a DHT derived compound it does not aromatize, but beyond simply not converting to estrogen, Drostanolone has documented activity as an aromatase inhibitor, directly competing with aromatase enzyme binding and reducing estrogenic conversion from other compounds present in the research environment. This anti estrogenic mechanism makes Masteron a uniquely positioned compound in androgen research, studied not only for its anabolic activity but for its role in modulating estrogenic activity within combined compound protocols.
F40 Biotech formulations are stocked by Canada Steroid Depot following the same rigorous third party lab verification process applied to every product in our range. Each batch is tested for concentration accuracy and purity before being made available, with COA documentation available on request. CSD’s sourcing standards apply uniformly across all manufacturers we carry, and F40 Biotech’s Masteron Enanthate meets those standards consistently. All orders ship discreetly across Canada in plain, unmarked packaging with no identifying information on the exterior.
Store at room temperature away from direct light and heat. Do not freeze. Intended for research purposes only.
Commonly researched alongside testosterone base compounds. Browse CSD’s full injectable range and PCT compounds for complete protocol sourcing.
