Testosterone 400mg High-Potency Blend

Testosterone 400 is an ultra-concentrated testosterone blend designed for advanced athletes and bodybuilders seeking serious size and strength. Delivering a powerful 400 mg of active testosterone per milliliter, this formula combines Testosterone Enanthate and Testosterone Decanoate for a long-acting, high-impact mass builder. Its high concentration allows users to reach substantial weekly dosages with significantly less oil volume than standard-strength preparations.

Product Composition

200mg: Testosterone Enanthate
200mg: Testosterone Decanoate

Each 10 mL vial contains a potent 400 mg/mL testosterone blend. The combination of two long-ester testosterones supports a sustained release of the hormone into the bloodstream, helping to reduce injection frequency while maintaining stable levels.

Key Features

High concentration supports smaller injection volumes.
Formulated to promote rapid and significant gains in muscle mass.
Long-acting esters help provide stable testosterone levels for days.
Supports major increases in strength and power output.
Helps enhance recovery and supports efficient protein synthesis.

Benefits of Testosterone 400

Efficient Dosing

One of the primary advantages of Testosterone 400 is its dosing efficiency. High weekly intakes (for example, 800 mg) can be reached with just 2 mL of oil, which may reduce the number of injection sites required.

Mass & Size

Testosterone is a foundational hormone for muscle growth. Testosterone 400 is formulated to drive nitrogen retention and support maximum size gains, making it a popular choice for off-season bulking phases.

Sustained Release

With substantial doses of Enanthate and Decanoate esters, this blend remains active in the system for an extended period, helping to minimize dips in testosterone levels between injections.

How to Use Testosterone 400

Testosterone 400 is a highly concentrated androgen intended for experienced users. A commonly referenced dosage range is 400 mg to 800 mg per week. Due to the long esters, it is often administered once weekly, although many users choose to divide the weekly dose to help support more stable blood serum levels.

Cycle Duration: 10–14 weeks is typically used to allow the long esters to fully build up and peak.
For Bulking: Often combined in advanced stacks with compounds such as Deca Durabolin and orals like Anadrol or Dianabol.
Tip: Due to the high concentration, gently warming the oil before injection may help support smoother administration.

Always consult a qualified healthcare professional before starting any hormone, steroid, or supplement regimen, especially if you have pre-existing medical conditions or are taking other medications.