Compare · Anabolic steroid
Mesterolone vs Nandrolone
Both are anabolic steroid compounds. Here's how they line up on the evidence — graded the same way.
| Mesterolone | Nandrolone | |
|---|---|---|
| Evidence | No credible evidence | Strong 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. | Nandrolone is an injectable anabolic-androgenic steroid (not a peptide) with high-quality trial evidence that it builds lean mass in catabolic illness, but weaker evidence for strength or functional gains and real androgenic, hormonal, and cardiovascular risks. |
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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…
Nandrolone
Nandrolone, best known by the brand name Deca-Durabolin, is a synthetic anabolic-androgenic steroid (AAS) — chemically 19-nortestosterone, the "nor" analogue of testosterone. It is not a peptide and not a SARM. It has a genuine, high-quality human evidence base for building lean mass in catabolic…