A Brief Overview of Ligandrol (LGD4033)

• Ligandrol (LGD4033) is one of the most powerful SARMs for increasing muscle mass and strength, making it particularly suitable for bulking cycles.

• It causes a more pronounced suppression of endogenous testosterone than other SARMs.

• It can promote a certain intramuscular water retention , giving a fuller and more swollen appearance.

• Like other SARMs, LGD4033 can affect lipid levels and, in some individuals, increase liver enzymes.

What is Ligandrol (LGD4033)

Ligandrol , also known as LGD4033 , is one of the most studied and widely used SARMs, having already passed several human clinical trials and entered phase 2 of clinical trials .

LGD4033 was developed by Ligand Pharmaceuticals for the treatment of conditions associated with muscle loss, such as cancer and AIDS. It is a second-generation SARM , more advanced than first-generation compounds like S4 (Andarine). To date, Ligandrol is the second most studied SARM after Ostarine.

From an anabolic standpoint, LGD4033 is considered the most effective SARM for muscle growth, but it also has the greatest impact on suppressing natural testosterone. A significant advantage of Ligandrol is its long half-life (24–36 hours) , which allows for stable plasma concentrations with just one daily dose. For related guidance, see 10mg tablets of 4-chlorodehydromethyltestosterone.

Main effects of LGD4033

• Significant increase in muscle mass , often accompanied by moderate water retention

• A marked increase in strength , making it one of the most powerful SARMs ever

• Increased bone mineral density

• Reduction of SHBG (sex hormone-binding globulin), resulting in increased biologically active free testosterone

Testosterone suppression

Ligandrol (LGD4033) is the SARM that most strongly suppresses endogenous testosterone production . In many users, symptoms of low testosterone (decreased libido, fatigue) can appear as early as the fourth week of the cycle , especially at medium-to-high dosages.

Suppression is dose-dependent . Clinical studies have shown that, after 21 days of LGD4033 use, hormone levels return to baseline values ​​within approximately 56 days , requiring PCT .

To limit the drop in testosterone, SERMs (such as clomiphene or tamoxifen) or hormonal support strategies involving testosterone or gonadotropin are commonly used during or after the cycle, depending on the user’s experience.

Effects on the liver

The use of LGD4033 may cause an increase in liver enzymes ALT and AST . For this reason, liver support with supplements such as:

• NAC : 600–1,200 mg

• TUDCA : up to 500 mg

• ALA : approximately 500 mg

Modification of the lipid profile

Like all SARMs, Ligandrol can alter your lipid profile, possibly reducing HDL (good cholesterol) and increasing LDL (bad cholesterol). Monitoring your blood levels is highly recommended during a LGD4033 cycle.

Pharmacokinetic profile

• Half-life : 24–36 hours

Recommended dosages

• Beginners : 5–10 mg daily

• Average dosage : 10–30 mg per day

• Recommended maximum : 40 mg per day

• Women : up to 5 mg daily