Sustanon 250mg/mL is a multi ester testosterone injectable blend in MCT oil supplied in a 10mL vial. Manufactured for consistency, stability, and research applications.
Format10mL Vial
Concentration250mg/mL
CarrierMCT Oil
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HPLC verified. COA on file for this batch
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Discreet plain packaging; always
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Sustanon 250 is a multi ester testosterone blend formulated to deliver both rapid onset and sustained release of testosterone through a single administration, combining short, medium, and long acting testosterone esters in a single preparation. CSD’s formulation delivers 250mg/mL in a 10mL multi dose vial using MCT (medium chain triglyceride) oil as the carrier base; a notable departure from the traditional oil carriers historically associated with Sustanon formulations, with MCT oil’s ultra low viscosity providing meaningfully smoother administration characteristics than the heavier carriers typically used in multi ester testosterone blends.
The multi ester composition of Sustanon produces a broader and more complex release curve than any single ester testosterone formulation. Shorter esters elevate testosterone levels quickly following administration while longer esters sustain release over an extended period, producing a staggered concentration profile that distinguishes Sustanon from CSD’s single ester Testosterone Enanthate, Cypionate, and Decanoate offerings. MCT oil as a carrier complements this multi ester profile particularly well. Its low viscosity ensures smooth administration despite the complexity of the blended ester suspension, and its clean composition supports stable uniform dispersion of multiple ester compounds within a single solution.
CSD stocks Sustanon 250 across three formats, this MCT oil vial, a grapeseed oil vial variant, and a 10 x 1mL ampoule presentation with the base compound, concentration, and ester blend remaining identical across all three. Carrier and packaging format represent the sole differentiating variables between listings, giving researchers the flexibility to select based on administration preference and protocol length without switching compounds or manufacturers.
Every batch of CSD’s Sustanon 250 MCT oil formulation is third party lab tested for concentration accuracy and purity prior to release, with COA documentation available on request. Canada Steroid Depot has supplied Canadian customers with consistently verified, accurately dosed compounds for years, and our Sustanon range across all formats remains among our most reordered testosterone products. 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.
The active compound and ester blend are identical across all Sustanon 250 formulations: Testosterone Propionate, Phenylpropionate, Isocaproate, and Decanoate at 250mg/mL total. This MCT oil version offers the lightest and most comfortable injection experience of all Sustanon formats in the catalogue, MCT oil is significantly less viscous than grape seed oil and eliminates the peanut allergy risk of traditional arachis oil pharmaceutical Sustanon. The multi dose vial format also allows flexible dosing unlike the fixed 1mL ampoule format.
The four ester composition produces a biphasic testosterone release profile; rapid onset within 24 hours from the Propionate component (half-life 2–3 days), followed by sustained elevation from the Phenylpropionate (3–4 days), Isocaproate (7–9 days), and Decanoate (14–16 days) components. This produces fast acting testosterone elevation without the daily injection requirement of pure Propionate, alongside sustained levels maintained by the longer acting esters between weekly injections making Sustanon suitable for research protocols where both rapid testosterone elevation and convenient once weekly administration are desired.
MCT oil is one of the lightest and lowest viscosity carrier oils available for injectable formulations, flowing freely through fine gauge needles at room temperature without pre warming and producing minimal injection site discomfort. This is particularly advantageous for Sustanon 250, which contains four testosterone esters in solution requiring adequate solubilization. The MCT carrier maintains all four esters in stable solution while producing the most comfortable injection experience of any Sustanon carrier; superior to the traditional arachis oil pharmaceutical formulation and lighter than grape seed oil based versions.
Once weekly administration is the most common research schedule, a single 1mL injection delivering 250mg of the four ester blend. For tighter serum testosterone stability, twice weekly administration splitting the dose into two equal 0.5mL injections reduces the fluctuation caused by the short acting Propionate component dropping off between weekly injections. The multi dose vial format makes twice weekly partial vial dosing straightforward; simply draw 0.5mL per injection on a Monday and Thursday schedule. This 10mL vial provides sufficient compound for 10 weekly or 20 twice weekly doses.
Yes! This batch has been independently HPLC tested by an accredited third party laboratory confirming total concentration accuracy at 250mg/mL and the correct four ester testosterone blend composition. A certificate of analysis is available.
