Undecanolab-250 is an injectable anabolic steroid which comes in 10 mL Vials and contains 250 mg of Testosterone Undecanoate, it is an original brand product of 7Lab Pharma. For intramuscular injections. An excellent product for bulking cycles.


Undecanolab-250 by 7Lab Pharma, containing Testosterone Undecanoate at 250 mg/ml in a 10 ml vial, is designed for those seeking a longer-acting testosterone option. This comprehensive review draws from real user testimonials to offer a detailed look at the benefits, recommended usage, and potential side effects of Undecanolab-250.

Product Overview

Testosterone Undecanoate is known for its ability to maintain stable testosterone levels with less frequent injections compared to other esters. Undecanolab-250 is particularly favored by those requiring steady, extended-release hormonal support for sustained muscle growth and performance enhancements.

User Reviews

  • Carlton J. (Experienced Bodybuilder) “I’ve been using Undecanolab-250 for over six months and appreciate its consistent release. It keeps my levels steady, which helps with my mood and physical gains. I’ve seen notable improvements in muscle mass and less fluctuation in energy levels compared to shorter esters I’ve tried.”
  • Rebecca T. (Endurance Athlete) “Undecanolab-250 has been a game-changer for my training regimen. Its long-lasting effect means fewer injections, which is great for me as I travel often for competitions. It helps maintain my performance without the hassle of frequent dosing.”
  • Simon P. (Fitness Enthusiast) “Starting Undecanolab-250 was a decision made with my doctor to help with low testosterone levels. Not only have I seen improvements in my energy and strength, but also in my overall well-being. The slow release is perfect for keeping my symptoms at bay without daily management.”


Users typically report that Undecanolab-250 provides a noticeable increase in strength and muscle mass, with the added benefit of minimal fluctuations in testosterone levels. Its long-acting formula is particularly effective for maintaining gains and enhancing overall physical conditioning over time.

Usage Guidelines

Undecanolab-250 is often administered once every two to three weeks, making it an ideal choice for those looking for convenience in a testosterone therapy regimen. Dosages can vary based on personal goals and medical advice, but they typically range from 250 mg to 500 mg per injection.

Potential Side Effects

Like other testosterone products, Undecanolab-250 may cause typical androgenic side effects such as acne, increased body hair, mood swings, and changes in sexual desire. Users should be vigilant about cardiovascular health and liver function, particularly with long-term use.


Undecanolab-250 by 7Lab Pharma offers a reliable, low-maintenance solution for those needing extended testosterone support. The user reviews consistently praise its ability to provide stable and effective enhancement, making it a valuable tool for both therapeutic and performance-enhancing purposes. As with all hormone therapies, it’s advisable to proceed under medical supervision to optimize benefits and mitigate potential risks.

Jeffrey Compo

Jeffrey Compo stands out as a leading authority in the field of injectable anabolic steroids and peptides. With a PhD in Pharmacology, Jeffrey combines his scientific expertise with practical experience to enhance athletic performance safely and effectively. As a prolific author and meticulous reviewer in the steroid community, he contributes significantly to both academic and practical understanding of performance enhancements.