Brief overview of Ligandrol (LGD4033)

• Ligandrol (LGD4033) is one of the most powerful SARMs for increasing muscle mass and strength, particularly suitable for bulking cycles.
• It causes a more pronounced suppression of endogenous testosterone than other SARMs.

• It can promote some intramuscular water retention, giving the muscles a fuller, more swollen appearance.

• Like other SARMs, LGD4033 can affect the lipid profile 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; it has already undergone several clinical trials in humans and has 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 such as S4 (Andarine). To date, Ligandrol is the second most studied SARM after Ostarine.

From an anabolic perspective, LGD4033 is considered the most effective SARM for muscle growth, but it also has the greatest impact on natural testosterone suppression. A significant advantage of Ligandrol is its long half-life (24–36 hours), which allows for stable plasma concentrations with only one daily dose.

Main effects of LGD4033

• Significant increase in muscle mass, often accompanied by moderate water retention
• Marked increase in strength, making it one of the most powerful SARMs ever

• Increase in bone mineral density

• Reduction in SHBG (sex hormone-binding globulin), resulting in an increase in 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) may appear as early as the fourth week of the cycle, especially at medium to high doses.

Suppression is dose-dependent. Clinical studies have shown that, after 21 days of using LGD4033, hormone levels return to baseline within approximately 56 days, making PCT necessary

To limit the drop in testosterone, SERMs (such as clomiphene or tamoxifen) or hormonal support strategies using 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 result in an increase in ALT and AST liver enzymes. For this reason, liver support with supplements such as:

• NAC: 600–1,200 mg

• TUDCA: up to 500 mg

• ALA: about 500 mg

Change in lipid profile

Like all SARMs, Ligandrol can alter the lipid profile, potentially lowering HDL (“good” cholesterol) and raising LDL (“bad” cholesterol). During an LGD4033 cycle, it is strongly recommended to monitor blood levels.

Pharmacokinetic profile

• Half-life: 24–36 hours

Recommended dosages

• Beginners: 5–10 mg per day

• Average dosage: 10–30 mg per day
• Recommended maximum: 40 mg per day

• Women: up to 5 mg per day