

Drug Class: Anabolic Androgenic Steroid (AAS)
Active Substances:
- Testosterone Propionate 42 mg
- Testosterone Isocaproate 84 mg
- Testosterone Phenylropionate 84 mg
- Testosterone Decanoate 140 mg
Strength: 350 mg/mL
Amount: 10 mL Vial
Active Life: 15–18 days (blend-dependent)
Average Dose: 350–700 mg/week
Liver Toxicity: Low
Aromatization Rate: High
Anabolic Rate: 100
Androgenic Rate: 100
Manufacturer: British Dragon
Sustabol 350 is British Dragon's powerful 4-ester testosterone blend designed for sustained muscle growth, strength, and hormonal optimization. Each 10 mL vial contains 350 mg/mL of total testosterone, combining fast and long-acting esters: Testosterone Propionate (42 mg), Phenylpropionate (84 mg), Isocaproate (84 mg), and Decanoate (140 mg). This unique blend delivers immediate and long-lasting anabolic activity, ideal for bodybuilders and athletes seeking a well-rounded performance enhancer.
This blend mimics the pharmacokinetics of traditional Sustanon 250 but offers increased potency per milliliter. Fast-acting Propionate initiates anabolic action within days, while the longer esters maintain stable serum levels over 2+ weeks. This makes Sustabol 350 suitable for less frequent injections while ensuring consistent muscle-building and performance-enhancing effects.
According to research published by the National Institutes of Health (NIH), testosterone esters like these are widely used in TRT and bodybuilding due to their ability to enhance lean mass, improve nitrogen retention, and support red blood cell production.
The average weekly dosage for Sustabol 350 ranges from 350 to 700 mg/week, typically split into two injections. Some experienced users may opt for a single weekly shot due to the long-acting esters, although splitting may help maintain steadier hormone levels.
Due to the high dose per mL, injection volume can be minimized, reducing site irritation while delivering robust anabolic support.
Sustabol 350 stacks well with a variety of anabolic compounds for bulking or cutting cycles. Consider these synergistic British Dragon products:
Because Sustabol 350 contains highly aromatizable testosterone esters, managing estrogen is crucial. Consider using Aromasin or Arimidex during your cycle to prevent bloating, gynecomastia, and mood swings.
A full PCT is essential and should begin 18–21 days after the final injection. Typical protocols include:
For U.S.-based customers looking for a trusted blend of testosterone esters, this potent injectable Sustabol 350 is a top-tier choice. Domestic shipping ensures timely delivery and less customs risk.
Sustabol 350 is ideal for intermediate to advanced users seeking a high-dose, long-lasting testosterone base for bulking or maintenance. Beginners should consider starting with lower doses and single esters before using potent blends like this.
Most users inject Sustabol 350 once or twice per week. Due to its long-acting esters, even a single weekly injection may be sufficient for stable levels.
It's generally recommended for intermediate users. Beginners may prefer single-ester testosterone products to simplify dosing and response monitoring.
Sustabol 350 has the same ester blend as Sustanon 250 but delivers a higher concentration per mL, reducing injection volume while increasing potency.
Yes. Since the product aromatizes into estrogen, it's wise to use an aromatase inhibitor like Arimidex or Aromasin to control side effects such as water retention or gynecomastia.
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Drug Class: Anabolic Androgenic Steroid (AAS)
Active Substances:
- Testosterone Acetate 30 mg
- Testosterone Propionate 73 mg
- Testosterone Phenylropionate 73 mg
- Testosterone Cypionate 125 mg
- Testosterone Decanoate 147 mg
Strength: 450 mg/mL
Amount: 10 mL Vial
Active Life: 14–21 days (multi-ester blend)
Average Dose: 450–900 mg/week
Liver Toxicity: Low
Aromatization Rate: High
Anabolic Rate: 100
Androgenic Rate: 100
Manufacturer: British Dragon
Drug Class: Anabolic Androgenic Steroid (AAS)
Active Substance: Testosterone Suspension (no ester)
Strength: 100 mg/mL
Amount: 10 mL Vial
Active Life: Less than 24 hours
Average Dose: 25–100 mg/day
Liver Toxicity: Low
Aromatization Rate: High
Anabolic Rate: 100
Androgenic Rate: 100
Manufacturer: British Dragon
Drug Class: Anabolic Androgenic Steroid (AAS)
Active Substance: Testosterone Cypionate
Strength: 250 mg/mL
Amount: 10 mL Vial
Active Life: 8–10 days
Average Dose: 250–750 mg/week
Liver Toxicity: Low
Aromatization Rate: High
Anabolic Rate: 100
Androgenic Rate: 100
Manufacturer: British Dragon
Drug Class: Anabolic Androgenic Steroid (AAS)
Active Substance: Testosterone Enanthate
Strength: 250 mg/mL
Amount: 10 mL Vial
Active Life: 8–10 days
Average Dose: 250–750 mg/week
Liver Toxicity: Low
Aromatization Rate: High
Anabolic Rate: 100
Androgenic Rate: 100
Manufacturer: British Dragon
Drug Class: Anabolic Androgenic Steroid (AAS)
Active Substance: Testosterone Propionate
Strength: 100 mg/mL
Amount: 10 mL Vial
Active Life: 2–3 days
Average Dose: 100–150 mg every other day
Liver Toxicity: Low
Aromatization Rate: Moderate
Anabolic Rate: 100
Androgenic Rate: 100
Manufacturer: British Dragon