Testosterone Enanthate 250mg/mL in a 10mL vial with cottonseed oil carrier. Premium injectable with consistent concentration and secure packaging.
Format10mL Vial
Concentration250mg/mL
CarrierCotton Seed 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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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 delivers 250mg/mL in a 10mL multi dose vial using cottonseed oil as the carrier base; one of the most historically established carriers in injectable testosterone preparations, with a long track record in pharmaceutical manufacturing dating back decades.
Cottonseed oil has a slightly higher viscosity than MCT oil but is exceptionally well tolerated with a proven compatibility profile in long term injectable use. It remains the carrier of choice in many traditional pharmaceutical testosterone preparations precisely because of its stability and shelf life characteristics. Researchers selecting between CSD’s cottonseed oil and sesame oil Test E variants will find the base compound and concentration identical; the carrier choice comes down to personal tolerance history and formulation preference.
At 250mg/mL this formulation delivers a higher concentration than CSD’s 200mg/mL MCT oil Testosterone Enanthate variant, allowing for reduced injection volumes per dose while maintaining equivalent compound delivery. For research protocols where minimizing administration volume is a consideration, higher concentration single ester formulations like this one offer a practical advantage without altering the pharmacokinetic profile of the compound itself.
Every batch of CSD’s Testosterone Enanthate is third party lab tested for concentration accuracy and purity prior to release, with COA documentation available on request. Canada Steroid Depot has been supplying Canadian customers with consistently verified, accurately dosed injectables for years, and our Testosterone Enanthate range remains among our most reordered 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 Testosterone Enanthate at 250mg/mL is identical to other Test E formulations in our catalogue. The distinguishing factor is the carrier oil. Cottonseed oil is one of the most historically established pharmaceutical carrier oils for injectable testosterone. Used in many original pharmaceutical testosterone preparations including early Testosterone Enanthate products. Some researchers specifically prefer cottonseed oil based formulations for their familiarity and documented pharmaceutical heritage, while others favour lighter modern carriers such as MCT or grape seed oil. All carrier oils used in CSD's injectable range are pharmaceutical grade.
Cottonseed oil is a medium to high viscosity carrier oil; more viscous than MCT, grape seed, or sesame oil at room temperature. This slightly higher viscosity means it benefits from brief pre warming before drawing, rolling the vial between the palms for 30–60 seconds or placing in warm water for a few minutes reduces viscosity and improves flow through the needle. Once warmed, cottonseed oil flows well through standard 23–25 gauge injection needles. Post injection site comfort is generally good and comparable to other established pharmaceutical carriers.
Yes! Cotton seed oil has an extensive documented history of pharmaceutical use as an injectable carrier oil, with decades of safety data from its use in original pharmaceutical testosterone and other steroid formulations. It is well tolerated by the majority of research subjects. Cottonseed allergy is exceptionally rare; significantly rarer than sesame or peanut allergies, making it a broadly safe carrier choice for the vast majority of researchers.
Administration frequency is determined by the ester half-life; 7–10 days for Testosterone Enanthate not the carrier oil. Once weekly administration is the most common research schedule for anabolic protocols. Twice weekly administration splitting the weekly dose into two equal injections produces tighter serum level stability with smaller peak to trough fluctuations. The preferred approach in TRT research where hormonal consistency is the primary objective.
Yes! This batch has been independently HPLC tested by an accredited third-party laboratory confirming concentration accuracy at 250mg/mL and compound identity as Testosterone Enanthate. A certificate of analysis is available.
