ProtokolPROTOKOL
SARMEmergingSARM

Ligandrol (LGD-4033)

SARM (LGD-4033)

Also known as LGD-4033, LGD4033, lgd, ligandrol

Half-life

~24-36 hours

What is Ligandrol (LGD-4033)?

Potent oral SARM with strong lean-mass and strength effects.

How Ligandrol (LGD-4033) works

High-affinity selective androgen receptor agonist promoting anabolic signaling in muscle tissue.

Benefits & uses

  • Strong lean muscle/mass gains
  • Strength
  • Effective at low doses

Common uses: Muscle mass, strength, bulking, body recomposition.

Ligandrol (LGD-4033) dosage

Protokol doesn't recommend doses for prescription or controlled compounds. Any figures below are reference or observational reports — dosing should be set with a qualified clinician.

Commonly reported
Observational: effective low (~5–10 mg/day); no reason to exceed ~5 mg per some sourcesObservational use reports — not a recommendation.

Ligandrol (LGD-4033) half-life

~24-36 hours

Ligandrol (LGD-4033) side effects

Noticeable suppression, lipid impacts, occasional lethargy.

  • Moderate-to-high suppression
  • HDL suppression
  • Possible lethargy
  • Notable testosterone suppression
  • Lipid shift (HDL suppression)
  • Lethargy
  • Water retention

Warnings & monitoring

  • Requires bloodwork + medical guidance
  • Suppressive — PCT typically needed
  • FDA-warned / WADA-banned / gray-market
  • Not approved for human use

Preparation & storage

Storage
Room temperature, dry storage.

Ligandrol (LGD-4033) interactions

  • with RAD-140

    Avoid · moderate

    Stacking strong SARMs at full dose maximizes HPTA suppression and lipid disruption. Use only one anabolic SARM at a time at meaningful doses.

    Timing: Do not run 3+ SARMs concurrently

  • with Ostarine

    Caution · mild

    Combining two SARMs increases suppression beyond either alone. Ostarine is milder than LGD — this stack is more manageable than RAD+LGD but still requires bloodwork monitoring and PCT consideration.

    Timing: Use Ostarine 10–15 mg with LGD 5 mg; monitor testosterone levels

  • with RAD-140

    Caution · moderate

    Both are highly suppressive SARMs — stacking significantly increases HPTA suppression and may require aggressive PCT. Combined androgenic load increases hair loss risk in predisposed individuals.

    Timing: Use lower doses of each if stacking; run no longer than 8 weeks

  • with RAD-140

    Caution · moderate

    Both are potent SARMs with significant testosterone suppression. Stacking amplifies suppression without proportional benefits. PCT required after either, especially together.

    Timing: Avoid stacking unless experienced — run one SARM per cycle for better assessment

  • with RAD-140

    Caution · high

    Both LGD-4033 and RAD-140 are among the most suppressive SARMs. Stacking them without exogenous testosterone can lead to severe hypogonadism. Full PCT required post-cycle.

    Timing: Avoid stacking these two aggressive SARMs — suppression is severe

  • with Cardarine

    Compatible

    LGD-4033 drives strength and lean mass; Cardarine offsets the cardiovascular impact and supports conditioning.

    Timing: Co-administer daily for lean bulk or recomp

  • with MK-677

    Compatible · low

    Popular lean mass stack. LGD-4033 is one of the most suppressive SARMs — expect testosterone suppression requiring PCT. MK-677 non-suppressive and complementary.

    Timing: Run MK-677 year-round; LGD-4033 in 8–12 week cycles with PCT

Commonly stacked with

Track Ligandrol (LGD-4033) in Protokol.

Log doses, model half-lives, check interactions, and line it all up against your bloodwork. Free on iPhone and Android.

Download on the App StoreGet it on Google Play

More SARM

For research and educational purposes only. This page is not medical advice and is not a recommendation to use any compound. Many compounds listed are not approved for human use, and some are prescription-only or controlled in your jurisdiction. Dosing figures are reference or observational reports. Talk to a qualified healthcare provider before starting, stopping, or changing anything. Protokol is for tracking purposes only.