SARM · AlphaStack™ Compound Database

Ostarine

Also known as: MK-2866 · Enobosarm · GTx-024 · S-22
WADA BannedNADA BannedSARM

The first SARM to enter clinical trials and the most widely studied. Developed by GTx Inc. Has completed Phase II trials for cancer cachexia and muscle wasting. Considered the mildest SARM in general circulation.

Side Effects & Risks

Performance Use

Ostarine is the entry point for most people exploring SARMs. Its reputation as the mildest and best-tolerated SARM makes it the first compound many people try when they want anabolic effect beyond what natural training provides but are not ready for traditional steroids. It is used in mild bulking phases, cutting phases where muscle preservation is...

Stacking & Combinations

Ostarine is commonly used alone as a first SARM experience because the goal is often to assess individual response to the class of compounds before adding complexity. When it does appear in stacks it is most often combined with MK-677 for recovery and sleep benefits, or used in very low doses alongside stronger SARMs like RAD-140 or LGD-4033 to rou...

Real-World Risk

The mildness of Ostarine leads to the same problem as Oxandrolone: people run it longer and in higher doses than they would use a compound with a more intimidating reputation. Testosterone suppression, while modest at lower doses, increases with dose and duration and is documented in clinical data. ...

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