Independent reference & toolkit 100 compounds graded · Last reviewed June 2026

Compare · Anabolic steroid

Mesterolone vs Stanozolol

Both are anabolic steroid compounds. Here's how they line up on the evidence — graded the same way.

MesteroloneStanozolol
Evidence 1/10 8/10
ClassAnabolic steroidAnabolic steroid
SummaryMesterolone 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.Stanozolol is an oral/injectable anabolic-androgenic steroid with a famous doping history; its physique reputation rests on weak evidence, while its harmful effects on lipids and the liver are robustly documented.
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Mesterolone

Mesterolone, almost always sold under the brand name Proviron, is a man-made oral steroid. More precisely, it's an anabolic-androgenic steroid (AAS) — a synthetic relative of the male hormone dihydrotestosterone (DHT). It's an androgen (a male-hormone-type drug), not a peptide and not a SARM.…

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Stanozolol

Stanozolol, sold under the brand name Winstrol, is a man-made anabolic-androgenic steroid (AAS, a lab-made relative of testosterone built to grow muscle) made from dihydrotestosterone. Most people know it from sports history: it's the steroid that cost Ben Johnson his 1988 Seoul Olympic 100 m gold…

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