Nandrolone Decanoate, commonly known as Deca Durabolin, is one of the most extensively researched anabolic compounds in sports science and endocrine literature. CSD’s formulation delivers 250mg/mL in a 10mL multi dose vial using cottonseed oil as the carrier base; a well established injectable medium known for its stability, low oxidation rate, and long shelf life in oil based formulations.

The decanoate ester gives Nandrolone one of the longest half lives among injectable compounds, estimated at approximately 15 days. This extended release profile means blood concentration levels remain elevated for an extended period following administration, making it well suited to research protocols requiring infrequent injection schedules and sustained compound presence. The slow release also contributes to the compound’s reputation for gradual, stable activity in research settings.

Nandrolone Decanoate is distinct from testosterone based compounds in that it is a 19 nor steroid — meaning it lacks the carbon atom at the 19th position of the testosterone structure. This structural difference produces a notably different interaction with androgen receptors and a significantly reduced rate of aromatisation compared to testosterone esters, making it a frequently studied compound in research examining anabolic activity independent of estrogenic conversion.

Every batch of CSD’s Nandrolone Decanoate is third party lab tested for concentration accuracy and purity, with COA documentation available on request. Canada Steroid Depot has supplied Canadian customers with consistently verified, accurately dosed compounds for years — Deca Durabolin remains one of our most consistently reordered injectable products. All orders ship discreetly across Canada in plain, unmarked packaging.

Store at room temperature away from direct light and heat. Do not freeze. Intended for research purposes only.

Commonly researched alongside a testosterone base compound. Browse CSD’s full injectable range and PCT compounds for complete protocol sourcing.