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Molecular structurePubMed
oralanabolic
Stanozolol
WinstrolWinnyStano
320
Anabolic Ratio
30
Androgenic Ratio
0.375d
Half-Life
DHT-derived oral. Dry, hard look — no water retention. Poor joint lubrication (notorious for joint pain). Significant cholesterol impact. Often used pre-contest for vascularity.
Mechanism of Action
Does NOT aromatize. Binds AR and SHBG with high affinity (frees more testosterone). Strongly reduces HDL and increases LDL — one of the most concerning cardiovascular profiles among common AAS.
Typical Dosing
210 mg
low / week
350 mg
moderate / week
700 mg
high / week
⚠ Warning Flags
- •Severe HDL reduction — worst cardiovascular impact of common oral AAS
- •Joint pain / tendon dryness common
- •Oral 17α-alkylated — limit use to ≤6 weeks
Effect Profile
Muscle Protein Synthesis5Moderate
Nitrogen Retention5Moderate
Strength Gains6Moderate
Red Blood Cell Production3Low
Fat Loss5Moderate
Glycogen Storage3Low
Recovery Speed4Low
Collagen Synthesis2Minimal
Side Effect Profile
Hormonal Suppression5Moderate
Estrogenic Effects1Minimal
Androgenic Effects4Low
Cardiovascular Strain7High
Liver Stress6Moderate
Insulin Resistance2Minimal
Mood Changes4Low
Prostate Risk3Low
Research Studies
Metabolic and ventilatory effects of stanozolol in rats and humans
Lewis MI, et al. · 1999
Stanozolol demonstrated strong lipid-lowering effects on HDL cholesterol — one of the most detrimental AAS cardiovascular profiles observed.