TEST D 250mg/mL – MCT Oil – 10mL Vial

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.

Commonly researched alongside an aromatase inhibitor. Browse CSD’s full injectable testosterone range and PCT compounds for complete protocol sourcing.