TXT 400 Xt Labs USA

TXT 400 Xt Labs - Testosterone Cyclopentylpropionate (Testosterone CPP)

Product Name: TXT 400
Manufacturer: XT Labs
Active Substance: Testosterone Cyclopentylpropionate
Concentration: 400 mg/mL – 10 ml vial

What is TXT 400 and What Does It Do?

TXT 400 is an injectable anabolic-androgenic steroid (AAS) containing the hormone Testosterone attached to the Cyclopentylpropionate (CPP) ester. This ester is a less common but notable one, offering a release profile that sits between the medium-length Enanthate/Cypionate esters and the very long-acting Undecanoate ester. It provides a stable and sustained release of testosterone over a significant period.

Testosterone is the primary male sex hormone and is the foundational compound for all anabolic steroid cycles. Its functions are:

• Powerful Anabolic: Drives protein synthesis, leading to muscle growth.

• Androgenic: Responsible for male characteristics like a deep voice, body hair, and libido.

• Performance Enhancement: Increases red blood cell count, improving endurance and recovery.

Purpose in Bodybuilding and Performance Enhancement

Testosterone CPP is used as a long-acting testosterone ester, suitable for various cycle goals. Its high concentration (400 mg/mL) allows for a high weekly dose with less injection volume.

1. Bulking Cycles: It is an effective base for off-season mass-building cycles. When combined with a calorie surplus, it produces substantial gains in muscle mass and strength.

2. Cutting Cycles: It serves as an essential "base" hormone during cutting phases to prevent muscle loss in a calorie deficit and maintain normal physiological function (libido, mood, energy).

3. Testosterone Replacement Therapy (TRT) / Blast and Cruise: Its long-acting nature makes it suitable for longer-term hormone replacement, though the high concentration may require careful dosing for TRT purposes. It is ideal for "cruising" between intense cycles.

4. Reduced Injection Frequency: Due to its longer half-life, it can maintain stable blood levels with less frequent injections compared to Propionate or even Enanthate.

Dosage and Administration

The Cyclopentylpropionate ester has a long half-life, estimated to be around 10-14 days, similar to or slightly longer than Testosterone Enanthate.

• Injection Frequency: Once or twice per week is sufficient to maintain stable blood levels.

• Men:

  • TRT/Cruise Dose: 150 - 200 mg per week (Note: Due to the 400 mg/mL concentration, precise measurement for low doses can be challenging).

  • Cycle Dose: 400 - 800 mg per week. A common starting dose is 400-500 mg per week, which can be administered as a single 1 mL injection or split into two 0.5 mL injections.

• Women: NOT RECOMMENDED. Testosterone is far too androgenic for female use and will cause virilization (development of male characteristics).

Benefits and Effects

• Provides steady and sustained increases in muscle mass and strength.

• Improved recovery, endurance, and overall sense of well-being.

• Increased libido and sexual function.

• Allows for less frequent injections compared to shorter esters.

• The high concentration (400 mg/mL) minimizes injection volume, which can reduce post-injection pain.

Potential Side Effects and Warnings

As an aromatizing steroid, Testosterone CPP carries the standard side effect profile of all testosterones, related to its conversion to estrogen and its androgenic nature.

• Estrogenic Side Effects: It readily converts to estrogen (aromatizes), which can lead to:

  • Water retention and bloating

  • Gynecomastia (development of breast tissue in males)

  • Increased blood pressure

  • An Aromatase Inhibitor (AI) like Arimidex or Aromasin is often required to manage these effects.

• Androgenic Side Effects: Acne, accelerated male pattern baldness (if genetically predisposed), and increased body hair growth.

• Suppression of Natural Testosterone: It will shut down the body's natural testosterone production. A comprehensive Post-Cycle Therapy (PCT) is essential after a cycle.

• Cardiovascular Strain: Can negatively impact cholesterol levels by suppressing HDL (the "good" cholesterol).

• Injection Site Discomfort: The very high 400 mg/mL concentration can cause significant post-injection pain (PIP) or inflammation in some users, as the high concentration of hormone can be irritating to the muscle tissue.