Testosterone Decanoate 250mg/mL in MCT oil, 10mL vial. Pharma grade formulation with consistent dosing and secure packaging.
Format10mL Vial
Concentration250mg/mL
CarrierMCT Oil
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HPLC verified. COA on file for this batch
Ships from within Canada; No Customs
Discreet plain packaging; always
24h dispatch; Tracked Delivery
Testosterone Decanoate is the longest acting single ester testosterone compound available for research, with an estimated half life of approximately 15 days. the most extended active window among all individual testosterone esters. This formulation delivers 250mg/mL in a 10mL multi dose vial using MCT (medium chain triglyceride) oil as the carrier base, pairing the compound’s ultra long release profile with one of the lowest viscosity carriers available resulting in smooth administration characteristics despite the higher concentration.
MCT oil as a carrier brings distinct advantages to a long acting compound like Testosterone Decanoate. Its exceptionally low viscosity relative to traditional oil carriers like cottonseed, sesame, and grapeseed oil produces easy draw and minimal injection site resistance, which is particularly relevant for a compound administered infrequently over extended research periods. MCT oil’s clean composition and well documented tolerability profile make it a preferred carrier for researchers prioritizing administration comfort in long duration protocols.
Compared to CSD’s Testosterone Decanoate 250mg/mL in grapeseed oil, this MCT formulation delivers an identical compound and concentration with the lightest available carrier option in the range. The pharmacokinetic profile remains the same, approximately 15 days half life, infrequent administration schedule, sustained concentration curve with carrier tolerability and personal preference representing the primary differentiating variable between the two formulations.
Every batch of CSD’s Testosterone Decanoate is third party lab tested for concentration accuracy and purity, with COA results included with the product and full documentation available on request. Canada Steroid Depot has supplied Canadian customers with consistently verified, accurately dosed injectables for years, and this formulation represents one of the more specialized offerings in our injectable testosterone range. 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.
This Testosterone Decanoate is manufactured by F-40 Biotech, a verified domestic Canadian supplier producing injectable anabolic compounds to CSD's quality standards. All F-40 Biotech products stocked by CSD are independently HPLC tested by accredited third party laboratories before listing, confirming concentration accuracy at 250mg/mL and compound identity as Testosterone Decanoate. A certificate of analysis is available on request for this specific lot number.
The active compound and concentration are identical, Testosterone Decanoate at 250mg/mL. The difference is the carrier oil. This F-40 Biotech formulation uses MCT (medium chain triglyceride) oil. One of the lightest and lowest viscosity carriers available for injectable formulations. MCT oil flows freely through fine gauge needles at room temperature without pre warming, produces minimal injection site discomfort, and absorbs rapidly at the injection site depot. Researchers who prefer the lightest possible injection experience with Testosterone Decanoate will find this MCT formulation the most comfortable option in our catalogue.
Testosterone Decanoate is the longest acting single testosterone ester available with a half-life of 14–16 days; significantly longer than Testosterone Enanthate (7–10 days) or Cypionate (8–12 days). This extended half-life allows once weekly or even once every 10 day administration while maintaining stable serum testosterone levels, making it the most infrequent injection schedule achievable with a single testosterone ester. It is the longest acting ester component in Sustanon 250 and is increasingly researched as a standalone compound for protocols where minimizing injection frequency is a priority.
Due to its 14–16 day half-life, Testosterone Decanoate can be administered once weekly or once every 10 days while maintaining stable serum testosterone levels. Once weekly administration at 250mg is the most practical research schedule, providing consistent testosterone elevation throughout the protocol. This 10mL vial at 250mg/mL contains 2500mg total; sufficient for 10 weekly injections covering a full 10 week research cycle.
Yes! This F-40 Biotech batch has been independently HPLC tested by an accredited third party laboratory confirming concentration accuracy at 250mg/mL and compound identity as Testosterone Decanoate. A certificate of analysis is available.
