Bulkmass 500 by British Pharma
Bulkmass 500 is a triple long-ester blend designed to reduce injection frequency and oil volume on advanced mass research protocols. Each millilitre carries 200 mg Testosterone Enanthate, 150 mg Nandrolone Decanoate, and 150 mg Trenbolone Enanthate. A 10 ml vial therefore delivers 5,000 mg of total active across three complementary molecules.
Per-millilitre breakdown
- Testosterone Enanthate: 200 mg
- Nandrolone Decanoate: 150 mg
- Trenbolone Enanthate: 150 mg
- Total active: 500 mg/ml
Why a triple blend
Mass-phase research often relies on testosterone, nandrolone, and trenbolone running in parallel. Bulkmass 500 collapses three injections into one and matches the esters so they release on a similar timeline. For advanced protocols only because the trenbolone fraction is included at every dose.
Important notes
- Trenbolone fraction makes this unsuitable for first-cycle research.
- Inject volume is heavier than single-compound vials, so a 23g or 21g pin is the usual choice.
- Long-ester only, no fast-acting components.
Brand & Format
- Brand: British Pharma
- Format: 10ml multi-dose vial
- Base: oil (intramuscular use only)
- Storage: cool, dry place between 15 to 30 degrees C
Notice: sold strictly for research and reference purposes. Not for human consumption. Buyers are responsible for compliance with local laws.




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