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Enhanced Performance

Mass 400

High-Dose Testosterone Blend, Injectable Solution
SKU: enhper-mass400

£45.00

Mass 400 is a high-concentration blend of testosterone esters designed to provide steady hormone release for optimal muscle growth and strength gains. The combination of different testosterone esters ensures both fast-acting and long-lasting effects, making it ideal for those looking to maximize their anabolic potential.

It has an active half-life depending on the esters present, typically ranging from 3 to 10 days. Recommended dosages range from 400 mg per week for beginners to 800 mg per week for advanced users. As a testosterone-based blend, it aromatizes and may cause estrogenic side effects such as water retention and gynecomastia, which can be managed with an aromatase inhibitor.

Orders are tracked via Royal Mail delivery service. Please allow up to 7 days for your order to arrive.

Orders can be placed through out website but will not be processed until payment has been received via Direct Bank Transfer. Please see our Payment Information page for more info.

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