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 a certain amount of intramuscular water retention, giving a fuller and 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, having already passed several clinical trials in humans and entered phase 2 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 values within approximately 56 days, making PCT necessary.

To limit the decline in testosterone, SERMs (such as clomiphene or tamoxifen) or hormonal support strategies with 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: 600–1200 mg

• TUDCA: up to 500 mg

• WING: approximately 500 mg

Change in lipid profile

Like all SARMs, Ligandrol can alter the lipid profile, with a possible reduction in HDL (good cholesterol) and an increase in LDL (bad cholesterol). During the LGD4033 cycle, it is strongly recommended to monitor blood values.

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