TEST E 250mg/mL – Ethyl Oleate Oil – 10mL Vial

Testosterone Enanthate is a long acting single ester testosterone compound with a well documented half life of approximately 7–10 days, providing stable and predictable blood concentration levels suited to research protocols requiring infrequent administration. This formulation is manufactured by Evolve Biolabs and delivers 250mg/mL in a 10mL multi dose vial using Ethyl Oleate as the sole carrier; a synthetic ester solvent that produces a distinctly different handling profile compared to traditional oil based testosterone preparations.

Ethyl Oleate’s significantly lower viscosity compared to grapeseed, cottonseed, sesame, and MCT oil carriers results in notably smoother draw and administration characteristics, particularly relevant at the 250mg/mL concentration of this formulation. It also functions as a co solvent, improving compound solubility and enabling stable high concentration formulations with reduced carrier volume. These properties make Ethyl Oleate a subject of ongoing interest in pharmaceutical injectable research and a preferred carrier for researchers prioritizing ease of administration in long duration protocols.

Evolve Biolabs formulations are stocked by Canada Steroid Depot following the same third party lab verification process applied to all products in our range; every batch is tested for concentration accuracy and purity before being made available, with COA documentation available on request. CSD does not carry products that fail to meet our sourcing standards regardless of manufacturer, and the Evolve Biolabs Testosterone Enanthate is no exception. All orders ship discreetly across Canada in plain, unmarked packaging with no identifying information on the exterior.

Some researchers note increased sensitivity to Ethyl Oleate compared to traditional oil carriers. A well documented characteristic in the injectable literature worth considering when selecting between CSD’s Testosterone Enanthate carrier options, particularly for those switching from oil based formulations for the first time.

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.