Test S100 (Testosterone Suspension) 100mg/mL – 10mL vial. Fast acting aqueous testosterone with consistent dosing.
Format10mL Vial
Concentration100mg/mL
Pay with Interac e-Transfer or Crypto
HPLC verified. COA on file for this batch
Ships from within Canada; No Customs
Discreet plain packaging; always
24h dispatch; Tracked Delivery
Testosterone Suspension is the only testosterone formulation with no ester attached; it is pure, unmodified testosterone suspended in an aqueous base rather than an oil carrier. This fundamental difference in chemistry produces a uniquely rapid pharmacokinetic profile that sets it apart from every other injectable testosterone in CSD’s range. With a half life measured in hours rather than days, Testosterone Suspension reaches peak blood concentration faster than any esterified testosterone compound, making it one of the most studied fast onset testosterone formulations in pharmaceutical and endocrine research.
The absence of an ester chain means the entire molecular weight of the compound is active testosterone, unlike esterified formulations where a portion of the molecular weight is occupied by the ester itself. This gives Testosterone Suspension a higher ratio of active testosterone per milligram compared to enanthate, cypionate, decanoate, or any other esterified variant at equivalent concentrations. At 100mg/mL, researchers are working with a greater amount of bioavailable testosterone per dose than a 100mg/mL esterified formulation would deliver.
The aqueous suspension format requires particular attention to handling compared to oil based injectables. Testosterone Suspension particles can settle over time and the vial should be thoroughly agitated before each use to ensure uniform concentration throughout the solution. More frequent administration is required to maintain stable blood concentration levels given the short half life; typically daily or every other day in documented research protocols, a meaningful logistical consideration compared to the weekly or twice weekly schedules associated with long acting esterified formulations.
Every batch of CSD’s Testosterone Suspension 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 compounds for years, and Testosterone Suspension represents one of the most specialized formulations in our injectable testosterone range. All orders ship discreetly across Canada in plain, unmarked packaging with no identifying information on the exterior.
Shake well before use. Store at room temperature away from direct light. Do not freeze. Intended for research purposes only.
Testosterone Suspension is pure, unesterified testosterone suspended in an aqueous (water based) solution rather than an oil carrier. Unlike esterified testosterone compounds such as Enanthate or Cypionate which release testosterone gradually over days or weeks as the ester cleaves, Testosterone Suspension contains no ester. It enters systemic circulation immediately upon injection and reaches peak plasma testosterone within 2–4 hours. This produces a rapid, powerful, but short lived testosterone spike that clears within 24 hours, requiring daily or twice daily administration to maintain elevated testosterone levels throughout a research protocol.
Testosterone Suspension is researched for applications where rapid testosterone elevation and fast clearance are priorities. Its immediate onset makes it one of the most studied compounds for acute performance research, pre event strength and power studies, and research protocols requiring precise short window testosterone elevation. Its fast clearance is also relevant in research contexts where compound detection windows are a consideration. Despite requiring daily injection, Testosterone Suspension produces the most rapid anabolic and androgenic effects of any testosterone formulation' making it one of the most potent research tools in the testosterone category.
Due to its 2–4 hour half-life and complete 24 hour clearance, Testosterone Suspension must be administered daily or twice daily in some research protocols to maintain continuously elevated testosterone levels. This is a significant practical difference from long acting esters such as Enanthate or Cypionate which require only once or twice weekly administration. Daily injection at 50–100mg is the most common research protocol. The F-40 Biotech 10mL vial at 100mg/mL provides 10 daily 100mg doses; sufficient for 10 days of research.
Testosterone Suspension is an aqueous suspension. The unesterified testosterone particles are suspended in water rather than dissolved in oil, meaning the compound can settle at the bottom of the vial between uses. Shake the vial thoroughly before drawing each dose to ensure uniform distribution throughout the suspension. Draw immediately after shaking and administer promptly. Use a drawing needle to fill the syringe, aqueous suspensions flow more easily than oil based injectables but a 21–23 gauge drawing needle ensures efficient vial aspiration.
Yes! This F-40 Biotech batch has been independently HPLC tested by an accredited third party laboratory confirming concentration accuracy at 100mg/mL and compound identity as Testosterone Suspension. A certificate of analysis is available.
