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

Compare · Anabolic steroid

Boldenone vs Fluoxymesterone

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

BoldenoneFluoxymesterone
Evidence 3/10 8/10
ClassAnabolic steroidAnabolic steroid
SummaryBoldenone is an injectable anabolic-androgenic steroid (a synthetic derivative of testosterone), not a peptide. Its only sanctioned use today is veterinary; there is no modern human clinical evidence supporting its physique or performance claims.Fluoxymesterone is an oral 17α-alkylated anabolic-androgenic steroid (not a peptide), once FDA-approved for hypogonadism and breast-cancer palliation but now largely obsolete. Its strongest, best-documented human data concern liver injury rather than benefit, and non-medical use is illegal and banned in sport.
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Boldenone

Boldenone, sold for animal use as Equipoise and known on the street as "EQ," is a synthetic anabolic-androgenic steroid (AAS) — a lab-made cousin of testosterone. It is not a peptide and not a SARM. It comes as a long-acting injectable (a form called the undecylenate ester, which slows how fast the…

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Fluoxymesterone

Fluoxymesterone, sold for decades under the brand name Halotestin, is a man-made anabolic-androgenic steroid (AAS) — a lab-made cousin of testosterone. You take it as a pill, and it's built from testosterone with a chemical tweak (called 17α-methylation) that lets it survive being swallowed. It's a…

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