Tool
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.
Add to comparison (2/4)
| Category | TRT | TRT |
| Evidence strength | Strong evidence | Moderate evidence |
| Evidence Score | 4/5 | 3/5 |
| User rating | 4.7 (63) | 4.7 (58) |
| Typical dose | — | 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/subcutaneous injections (every 1–2 weeks), transdermal gels and creams (daily), less commonly patches or subcutaneous implants |
| Average price | — | — |
| Monthly cost | — | — |
| Time to effects | Not applicable — this is an interpretive question, not an intervention. The suppression of spermatogenesis itself typically develops within a few months of starting TRT. | 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 on TRT or considering TRT who aren't sure whether they still want children | Men with at least two confirmed, morning testosterone results below the laboratory reference range |