Andarine (S-4)
Muscle & Strength · SARM
Tier D
What this is
Added from WADA S1.2. Andarine is a distinct SARM from ostarine, ligandrol, RAD-140, S-23 and YK-11 already represented elsewhere. Treat as research-stage, not a supplement.
Mechanism
Nonsteroidal selective androgen receptor modulator developed for wasting and osteoporosis signals; gray-market users pursue lean-mass and recomposition effects.
Dose & route
No approved human dosing; gray-market protocols are not clinical dosing
Citations
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This is an independent synthesis of published research by a non-clinician. Scores are opinions supported by citations, not prescriptions. See the full disclaimer and methodology for how this score was produced and what it does and doesn't mean.