Long-acting testosterone ester — the standard TRT base.
Typical dose range: 100–200 mg/wk (TRT)
Frequency: 1–2 × weekly
Route: Intramuscular
Half-life: ~8 days
Evidence level: Strong (clinical)
Inject 1–2 × weekly to keep trough levels stable. Bloodwork at 6 weeks then quarterly is the community norm.