Sustabol 350 is an injectable anabolic steroid which comes in 10 mL Vials and contains 350 mg of Testosterone Propionate, Testosterone Phenylpropionate, Testosterone Isocaproate, Testosterone Decanoate, it is an original brand product of British Dragon. For intramuscular injections. An excellent product for bulking cycles.


Sustabol 350 is a powerful formulation by British Dragon, offering a blend of testosterone esters at a concentration of 350 mg/ml in a 10 ml vial. Designed for athletes looking for balanced and extended-release testosterone, this product supports sustained muscle growth and performance enhancement. This review provides a deep dive into its efficacy, drawing on real user experiences.

Product Overview

Sustabol 350 combines multiple testosterone esters to optimize its anabolic and androgenic effects. The blend allows for immediate and delayed testosterone release, which is ideal for maintaining stable blood levels and reducing injection frequency. This formulation is particularly favored by those engaging in longer training cycles.

User Reviews

  • Chris L. (Professional Bodybuilder) “Sustabol 350 has been part of my bulking and cutting phases for the past year. Its balanced release helps me maintain high testosterone levels without the peaks and troughs associated with other products. It significantly enhances my strength and recovery times.”
  • Jenna H. (Amateur Powerlifter) “I switched to Sustabol 350 six months ago and noticed a huge difference in my performance. The sustained release means I feel more consistent in my energy and strength levels throughout my training cycle. It’s been effective with manageable side effects.”
  • Alex D. (Fitness Enthusiast) “My experience with Sustabol 350 has been overwhelmingly positive. I’ve achieved noticeable gains in muscle mass and my overall strength has improved drastically. I administer it once a week, and this frequency works perfectly for me, keeping side effects at bay.”


Sustabol 350’s multi-ester formula ensures a quick onset and prolonged activity of testosterone, making it highly effective for both rapid strength gains and long-term muscle growth. Users report improvements in muscle density, strength, and endurance, underscoring its potency.

Usage Guidelines

For optimal results, Sustabol 350 is typically injected once a week due to its balanced mix of fast-acting and long-lasting esters. Dosages can vary, but most users find 350 to 700 mg per week to be effective depending on their experience level, goals, and tolerance.

Potential Side Effects

As with most testosterone products, potential side effects include acne, increased body hair, mood swings, and changes in libido. Regular monitoring and following a planned steroid cycle with post-cycle therapy (PCT) can help mitigate these effects.


Sustabol 350 by British Dragon offers a robust solution for athletes seeking continuous, stable testosterone levels. The user testimonials highlight its efficacy and manageable side effect profile, making it a reliable choice for serious athletes and bodybuilders. As always, consultation with a healthcare provider is recommended to ensure safe and effective use.

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.