SARM
Ostarine
MK-2866, Enobosarm
Research ChemicalPhase II TrialsOral
Half-life
~24 hours
Common dose
10-25mg/day
How it works
First generation SARM with the highest human trial data of any SARM. Selectively binds androgen receptors in muscle and bone with minimal prostate and cardiovascular activity.
Commonly used for
Muscle massCuttingBone densityBeginners
Potential benefits
- Most studied SARM in human clinical trials
- Very mild — ideal first SARM for beginners
- Minimal suppression at lower doses
- Preserves muscle during caloric deficit
- Improved bone density in trials
Risks and downsides
- Mild gains compared to LGD or RAD
- Still suppresses testosterone at higher doses
- Not FDA approved
- WADA banned
- Frequently counterfeited
Heads up: This is for educational purposes only and is not medical advice. Many compounds here are not FDA approved for human use. Please talk to a doctor before starting anything.
Risk level
Evidence
What you need to get started
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