Compare · Anabolic steroid
Mesterolone vs Methenolone
Both are anabolic steroid compounds. Here's how they line up on the evidence — graded the same way.
| Mesterolone | Methenolone | |
|---|---|---|
| Evidence | No credible evidence | Preliminary human |
| Class | Anabolic steroid | Anabolic steroid |
| Summary | Mesterolone is an oral, DHT-derived anabolic-androgenic steroid once sold abroad for male hypogonadism and idiopathic infertility. Controlled human trials for its two historic uses (fertility, mood) are negative or unconvincing, and its performance 'anti-estrogen' reputation has no strong human evidence. | A DHT-derived anabolic-androgenic steroid once used medically for bone-marrow-failure anemias and historically studied in breast cancer; its 'mild and safe' bodybuilding reputation rests on lore, not controlled performance trials. |
| Full profile → | Full profile → |
Mesterolone
Mesterolone, almost always known by the brand name Proviron, is a synthetic, orally active anabolic-androgenic steroid (AAS) derived from dihydrotestosterone (DHT). It is an androgen — not a peptide and not a SARM. Unlike most of the other agents people lump it in with, mesterolone was never…
Methenolone
Methenolone (brand name Primobolan) is a synthetic anabolic-androgenic steroid derived from dihydrotestosterone (DHT). It is an androgen, not a peptide. Its genuine medical history is narrow — old, small studies in bone-marrow-failure anemias and a historical role in advanced breast cancer — while…