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Supplement comparison tool
Pick up to 4 knowledge base entries and compare their dosage, price, evidence strength and ratings side by side — you can save or share a link to your selection.
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| Category | TRT | TRT |
| Evidence strength | Moderate evidence | Moderate evidence |
| Evidence Score | 3/5 | 3/5 |
| User rating | 4.6 (57) | 4.7 (58) |
| Typical dose | Cypionate/enanthate: most often 50–100 mg weekly, 100–150 mg every 10–14 days, or 25–50 mg twice a week at the same total weekly dose. Undecanoate: 750–1000 mg every 10–14 weeks after a loading-dose phase (a separate schedule — see our entry on delivery forms). | There's no single universal dose — it's chosen individually to achieve a testosterone concentration in the mid-to-upper reference range for healthy young men |
| Form | Intramuscular injections (usually the gluteal muscle or thigh) or subcutaneous (abdomen, thigh) — the choice of route and frequency depends on the preparation, patient preference, and tolerance. | Intramuscular/subcutaneous injections (every 1–2 weeks), transdermal gels and creams (daily), less commonly patches or subcutaneous implants |
| Average price | — | — |
| Monthly cost | — | — |
| Time to effects | A new frequency schedule reaches its target, repeatable concentration profile usually after 3–5 half-lives of the ester used — for cypionate/enanthate, that's roughly 3–5 weeks of regular use. Subjectively assessing whether a given schedule actually flattened well-being swings usually requires observing at least 2–3 full dosing cycles on the new rhythm, not a single injection. | Libido and sexual function: 3–6 weeks. Muscle mass and strength: 3–6 months with concurrent training. Bone density: 12+ months. Mood, energy, and cognitive function: inconsistent effect, practically indistinguishable from placebo in many patients. |
| Who it's for | Men just starting injectable TRT, setting their first dosing schedule with a doctor | Men with at least two confirmed, morning testosterone results below the laboratory reference range |