Disclaimer
CompoundIQ publishes research summaries for informational and educational purposes only. Nothing on this site constitutes medical advice, diagnosis, or treatment recommendations. Always consult a licensed healthcare provider. Many compounds listed are research chemicals not approved for human use.
Methylstenbolone
Also known as: M-Sten, 2,17a-dimethyl-5a-androsta-1-en-17b-ol-3-one
Methylstenbolone (M-Sten) is a designer oral anabolic steroid that was marketed as a legal prohormone. It is structurally related to stenbolone with an added 17-alpha methyl group for oral bioavailability. It gained popularity for producing lean, dry gains similar to Superdrol but with reportedly less severe side effects.
Risk Level
High RiskDifficulty
Advanced| Molecular Formula | C21H34O2 |
| Class | Steroid |
| Category | Underground Steroids |
Mechanism of Action
A 17-alpha-methylated derivative of stenbolone that binds directly to androgen receptors. Does not aromatize to estrogen and does not have progestogenic activity. Provides moderate anabolic effects with a favorable anabolic-to-androgenic ratio. The methyl group enables oral delivery but increases hepatotoxicity.
Dosing Research
Typically dosed at 4-12 mg per day in oral form. Cycles limited to 4-6 weeks due to liver stress. Often used as a standalone compound or combined with a non-methylated injectable. Liver support and PCT are essential.
Side Effects & Risks
Hepatotoxicity from 17-alpha-alkylation, though reportedly less severe than methasterone. Negative impact on lipid profiles. HPTA suppression requiring PCT. Androgenic side effects possible including hair loss and acne. Lethargy reported at higher doses. No formal safety studies exist.
Research Studies
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Disclaimer
CompoundIQ publishes research summaries for informational and educational purposes only. Nothing on this site constitutes medical advice, diagnosis, or treatment recommendations. Always consult a licensed healthcare provider. Many compounds listed are research chemicals not approved for human use.