Test P - shortest half-life and quickest saturation
| Ester | Half-Life | Time to Steady State (≈5 half-lives) |
|---|
| Testosterone Propionate | 19-22 hours | 4-5 days |
| Testosterone Cypionate | 7-8 days | 5-6 weeks |
| Testosterone Enanthate | 4.5-9 days | 3-5 weeks |
Opt for testosterone propionate (Test-P), the shortest ester, for the most stable blood levels, reduced aromatization, and minimal bloat. It requires daily or every-other-day (EOD) injections.
If daily injections aren't feasible, choose a longer ester like cypionate or enanthate
but expect more fluctuations, bloat, and higher aromatization.