Test-400 (Testosterone Blend) 400 mg/mL

Substance: Testosterone Ester Blend
Form: Injectable solution, oil-based
Common names: Test-400
Dosage: 400 mg/mL
Packaging: 10 mL vial
Purity: >99%

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SKU: TEST4001 Categories: ,

Description

Test-400 is a highly concentrated, multi-ester injectable testosterone blend designed to deliver a massive and sustained anabolic-androgenic impact. By combining several testosterone esters in an ultra-high concentration, Test-400 provides both a rapid hormonal surge and prolonged release from a single injection, making it a potent choice for advanced users seeking maximum growth with minimized injection frequency and volume.

Mechanism of Action

The mechanism of action for Test-400 is that of exogenous testosterone, delivered through a sophisticated ester blend. The short and medium-chain esters in Test-400 provide a rapid increase in serum testosterone levels, quickly saturating androgen receptors to initiate protein synthesis and nitrogen retention. The longer esters in the Test-400 formulation then maintain elevated levels for an extended period. This creates a powerful, continuous anabolic state that aggressively promotes muscle growth, strength, and recovery. As with all testosterone, the hormones in Test-400 are substrates for aromatase and 5-alpha-reductase.

Clinical Application and Dosage

Test-400 has no approved medical use and is formulated explicitly for performance-enhancing cycles where significant mass and strength are the primary goals. The design philosophy behind Test-400 is to deliver a supraphysiological testosterone dose efficiently, leveraging high concentration to reduce the number of injections or total volume required per week.

Due to its high concentration and potency, Test-400 is intended for experienced users. Dosages must be carefully calibrated; a common weekly dose of Test-400 ranges from 400 mg to 800 mg, often split into two intramuscular injections to mitigate side effects from large ester peaks. The 400 mg/mL concentration of Test-400 means even a 1 mL injection delivers a very substantial dose, making precise measurement paramount.

Treatment Protocol and Monitoring

A cycle with Test-400 is typically run for 10-14 weeks. The high-dose nature of Test-400 makes diligent health monitoring non-negotiable. This requires comprehensive blood work before, during, and after the cycle to monitor serum testosterone, estradiol, hematocrit, lipid profiles, liver enzymes, and PSA. Blood pressure must also be tracked regularly due to the strong estrogenic and androgenic effects induced by Test-400.

Pharmacological Profile

The pharmacological profile of Test-400 is defined by its ultra-high concentration and specific ester blend, which typically includes mixtures like testosterone propionate, testosterone phenylpropionate, testosterone isocaproate, and testosterone decanoate or cypionate. This creates a complex release pharmacokinetic profile with sharp initial peaks and a long anabolic tail. The high concentration can increase the likelihood of post-injection pain (PIP) and requires careful, deep intramuscular administration.

Common Side Effects

The use of Test-400 is associated with pronounced side effects due to the high dose and rapid hormone fluctuations from the ester blend. The most common include:

  • Severe Estrogenic Effects: Pronounced water retention, high blood pressure, and a significant risk of gynecomastia.
  • Pronounced Androgenic Effects: Severe acne, oily skin, and accelerated male pattern hair loss.
  • Strong Suppression: Complete shutdown of the hypothalamic-pituitary-testicular axis (HPTA).
  • Polycythemia: A marked and potentially dangerous increase in red blood cell count (hematocrit).
  • Negative Lipid Impact: Significantly worsens cholesterol ratios, suppressing HDL and potentially elevating LDL.
  • Injection Site Pain: Increased likelihood of PIP due to the high concentration and volume of solvents.

Test-400 is contraindicated for individuals with pre-existing prostate, cardiovascular, or hepatic conditions. It is not suitable for beginners or those new to high-dose testosterone use.

You can buy Test-400 (Testosterone Blend) made by Apoxar in bulk in Canada via our website. Navigate to the “Purchase” tab and fill the contact form with details of your wholesale order. Please note: we do not sell single packs or ship directly to consumers, Apoxar is a wholesale fitness medication manufacturer and we work exclusively with our approved distributors.

Test-400 FAQ

What is Apoxar Test-400?

Test-400 is a high-concentration injectable blend of three testosterone esters: Enanthate, Cypionate, and Propionate. This formulation is designed to provide a rapid onset of effects from the Propionate while establishing sustained, stable blood levels from the longer Enanthate and Cypionate esters.

What is the primary benefit of this blend?

The primary benefit is achieving a fast "kick-in" time due to the short Propionate ester, coupled with the prolonged release and fewer required injections from the longer Enanthate and Cypionate esters. This makes it an efficient choice for both kickstarting a cycle and maintaining steady testosterone levels.

What is the typical injection frequency?

While the long esters allow for less frequent injections than Propionate alone, the high concentration often necessitates splitting doses to manage injection volume and comfort. A common protocol is two injections per week (e.g., Monday/Thursday) to maintain stable hormone levels and minimize post-injection pain.

What is the main challenge with high-concentration testosterone?

The primary challenge is injection site discomfort or Post-Injection Pain (PIP), which is more common with concentrations above 250 mg/mL. The blend of esters and Apoxar's pharmaceutical-grade carrier oil are formulated specifically to enhance solubility and improve tolerability at this 400 mg/mL strength.

Why is GMP-certified manufacturing essential for Test-400?

Achieving a stable, pain-minimized 400 mg/mL solution requires precise ester blending and advanced filtration. Apoxar's GMP-certified process guarantees exact potency, superior purity, and a smooth, sterile suspension that ensures predictable hormonal delivery and maximizes user comfort.

Is this blend suitable for TRT (Testosterone Replacement Therapy)?

No. Test-400 is intended for performance and physique-enhancing cycles where supra-physiological levels are the goal. The high concentration and blend of esters are not designed for the consistent, steady-state levels preferred in a clinical TRT protocol.

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