Home Compounds RAD-140 vs LGD-4033 vs Ostarine
Head-to-head comparison

RAD-140 vs LGD-4033 vs Ostarine.

The three most-used SARMs ranked. Anabolic effect vs HPG suppression vs cycle-recovery time.

Selective androgen receptor modulator

RAD-140

High-potency SARM, near testosterone-level anabolic signal. Hepatotoxicity reports in users.

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Selective androgen receptor modulator

LGD-4033

Potent SARM — clean, strength-focused. Strongest HPG suppression of the SARMs.

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Selective androgen receptor modulator

Ostarine

The most-studied SARM. Mildest profile — bridging tool for recomp and injury recovery.

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Side by side.

RAD-140LGD-4033Ostarine
Anabolic effectStrong (near-test)StrongMild
SuppressionHeavyHeavyMild
Typical dose10-20 mg / day5-10 mg / day15-25 mg / day
Cycle8-12 weeks8-12 weeks8-12 weeks
PCT required?Yes (Nolvadex)Yes (Nolvadex/Enclomiphene)Sometimes
Best forMass, strengthLean strength, recompRecomp, healing
Side-effect flagHepatotoxicity reportsStrong HPG suppressionMildest profile
Human trial dataSparsePhase IIPhase III (cachexia)

The anabolic-vs-suppression tradeoff

There is no free lunch with SARMs. The compounds that produce the strongest anabolic effect (RAD-140, LGD-4033) also produce the heaviest HPG suppression. Ostarine, the mildest, also has the weakest anabolic effect. Pick based on what side of that tradeoff matters more to you.

When to pick Ostarine

Recomp cycles, bridge cycles between AAS cycles, injury recovery, first-time SARM users. The most studied SARM (FDA Phase III for cancer cachexia), the mildest suppression, and the lowest reported side-effect rate. Often run without PCT at 15 mg / day, though SERM PCT is still advisable.

When to pick LGD-4033

Lean strength, recomp with more aggression than Ostarine can deliver, clean dryness profile. Suppresses HPG hard — needs a full 4-week PCT with Nolvadex or Enclomiphene. Sourcing risk: heavily counterfeited.

When to pick RAD-140

Maximum anabolic effect SARMs can offer, near-testosterone levels of muscle and strength gains. The hepatotoxicity case reports (a handful of published liver-injury cases) and aggressive HPG suppression mean this is the SARM with the highest risk profile. Full PCT mandatory.

Track both side-by-side.

Epti lets you log your protocol — every dose, side-effect, and outcome on one timeline. The only way to know which works for you.