Test E + Primobolan (12 weeks)
Lean-mass cycle: 500mg/wk Test E + 400mg/wk Primobolan (injectable methenolone). Primo is favored for quality muscle with minimal water retention.
Concentration over time
| Date | Primobolan (Injectable) | Testosterone Enanthate |
|---|---|---|
| W1 | 0.00 | 0.00 |
| W1 | 1107.74 | 1369.52 |
| W2 | 2107.10 | 2114.62 |
| W3 | 2687.49 | 2494.75 |
| W4 | 3005.83 | 2686.24 |
| W5 | 3377.01 | 2779.14 |
| W6 | 3587.94 | 2819.26 |
| W7 | 3692.85 | 2829.69 |
| W8 | 3727.30 | 2821.82 |
| W9 | 3714.83 | 2800.97 |
| W10 | 3671.18 | 2769.28 |
| W11 | 3606.95 | 2727.13 |
| W12 | 2673.93 |
Protocol summary
Test E + Primobolan (12 weeks) · 12 weeks starting Jul 20, 26
- Testosterone Enanthate — 250.0 mg 2×/week (Mon/Thu), weeks 0–12
- Primobolan (Injectable) — 200.0 mg 2×/week (Mon/Thu), weeks 0–12
Protocol overview
- Category
- aas cycle
- Duration
- 12 weeks
- Compounds
- 2
- Tags
- primobolan, methenolone, lean-mass
Compounds in this protocol
- Testosterone Enanthate — 250 mg, 2x-per-week
- Primobolan (injectable) — 200 mg, 2x-per-week
How to read this protocol
The chart above shows the modeled blood concentration of each compound over the 12-week duration. Each compound accumulates toward steady state (roughly 5 half-lives). The peak-to-trough ratio within each dose interval depends on the injection frequency relative to the half-life.
Use the [peak-trough estimator](/tools/peak-trough) to see predicted levels at any point, or the [clearance calculator](/tools/clearance) to estimate washout after the protocol ends. The [PCT planner](/pct-planner) estimates when to start post-cycle therapy.
Educational only. Not medical advice. Concentration values are modeled estimates based on population pharmacokinetics, not predictions of individual blood levels.