

TESTOSTERONE BLEND 450 MG INJECTION
Drug Class: Injectable Anabolic Androgenic Steroid
Composition:
- Active Substances: Testosterone Decanoate (147 mg), Testosterone Cypionate (125 mg), Testosterone Phenylpropionate (73 mg), Testosterone Propionate (73 mg), Testosterone Acetate (30 mg)
- Concentration: 450 mg/mL
Presentation: 10 mL Vial
Manufacturer: British Dragon Pharmaceuticals
Andropen 450 by British Dragon Pharmaceuticals is a powerful injectable testosterone mix designed for athletes who want sustained anabolic effects from a single compound. With five different testosterone esters—Acetate, Propionate, Phenylpropionate, Cypionate, and Decanoate—it delivers both fast-acting and long-lasting hormone release, making it ideal for lean bulking and strength cycles.
The blend contains 450 mg/mL of testosterone per dose, broken down into:
This combination is engineered to provide a rapid onset within the first 24–48 hours due to short esters, while maintaining stable levels for over 10 days thanks to the longer components. It mimics the effects of Sustanon but delivers a much higher total dosage per mL. According to clinical studies on testosterone esters, such blends can optimize hormonal therapy or performance enhancement by combining peak and extended-release phases.
Andropen 450 is ideal for intermediate to advanced users who want to reduce injection frequency without sacrificing potency. It's often cycled over 10–12 weeks and works synergistically with oral kickstarts like Methanabol 50 mg or injectable stacks such as Sustabol 350.
For dry gains and enhanced definition, some bodybuilders include Trenabol 200 or Mastabol 100 mid-cycle to maximize androgenic hardness without excessive bloat.
Due to its strength, it's recommended to use an AI like Anastrozole to manage estrogen levels and avoid potential side effects like water retention or gynecomastia.
Because Andropen contains long esters, post-cycle therapy should start 18–21 days after the last injection. A typical PCT includes SERMs such as Clomid or Nolvadex, ensuring natural testosterone rebounds effectively. Users can explore this in-depth guide to this testosterone mix for timing and recovery strategy.
British Dragon Andropen stands out for its high-dose concentration, exceptional formulation quality, and lab-tested consistency. Athletes in the USA trust this compound as a robust foundation for strength and size cycles. If you're comparing it to blends like Supertest or Sustanon, this high-concentration formula offers greater value per mL and fewer injections across long cycles.
Andropen 450 mg is used by bodybuilders for lean mass, strength gains, and long-term testosterone elevation. It's a high-dose testosterone mix of five esters.
Due to the blend of fast and slow esters, most users inject Andropen 450 two to three times per week to maintain steady testosterone levels.
No. Andropen 450 is a stronger mix with five esters at higher concentrations. Sustanon contains four esters and typically less total testosterone per mL.
Because of the long-acting esters, post-cycle therapy (PCT) should begin about 18–21 days after your last injection for optimal hormonal recovery.
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TESTOSTERONE BLEND 350 MG INJECTION
Drug Class: Injectable Anabolic Androgenic Steroid
Composition:
- Active Substances: Testosterone Decanoate (140 mg), Testosterone Isocaproate (84 mg), Testosterone Phenylpropionate (84 mg), Testosterone Propionate (42 mg)
- Concentration: 350 mg/mL
Presentation: 10 mL Vial
Manufacturer: British Dragon Pharmaceuticals