Description

Winstrol is the most recognized trade name for the anabolic steroid stanozolol. Stanozolol is a derivative of dihydrotestosterone, chemically modified to greatly enhance its anabolic (tissue-building) activity while significantly reducing its androgenic effects. Among commercially available steroids, it demonstrates one of the strongest separations between anabolic and androgenic action. Additionally, stanozolol cannot be aromatized into estrogens.

Winstrol is the second most popular oral anabolic steroid, surpassed only by Dianabol (methandrostenolone). It is especially favored for its ability to stimulate muscle growth without causing water retention, making it highly valuable to dieting bodybuilders and competitive athletes seeking a leaner, more defined appearance.

Structurally, stanozolol is a modified form of dihydrotestosterone. It features the addition of a methyl group at the 17-alpha position, which protects the hormone during oral ingestion, and the substitution of a pyrazol group on the A-ring in place of the normal 3-keto group. This alteration classifies stanozolol as a heterocyclic steroid. Viewed as a 17-alpha methyldihydrotestosterone derivative, the A-ring modification markedly boosts its anabolic strength while further minimizing androgenicity.