What is LGD-4033 (ligandrol)?

The short answer

LGD-4033 is a lab-made pill that is studied in research on the same system as male hormones.

What it is
Non-steroidal pill that binds the androgen receptor in a selective way.
What people look into
Muscle and exercise

6 sources
Status as of October 4, 2026
How we source
Ellum doesn't sell peptides.

By Ellum EditorialPublished October 6, 2026Updated October 11, 2026AI use

Get updates on LGD-4033 (ligandrol)

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Peptides: LGD-4033 (ligandrol) (1 selected) · edit

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What it is

Type: Selective androgen receptor modulator (SARM), non-steroidal
Also known as: vk5211, anabolicum
How it works: Non-steroidal pill that binds the androgen receptor in a selective way.

Regulatory status

Not FDA-approved How we label status

As of October 4, 2026, LGD-4033 (ligandrol) is not FDA-approved for any use and is not on FDA's 503A bulks list.

See LGD-4033 (ligandrol) in the Index →

Federal (FDA): Not FDA-approved; excluded from the dietary supplement definition under 201(ff)(3) (FDA ingredient directory categories 2, 4)
503A compounding: No category; not on 216.23 as of 2026-10-07 (as of October 7, 2026)
WADA 2026: S1.2 (named LGD-4033 (ligandrol))

US enforcement actions

2 US enforcement actions since 2023.

Actions by US federal and state agencies whose documents name LGD-4033 (ligandrol). Each row links to the government's own document.

Scroll sideways to see all columns.

Date	Agency	Action	Document
December 12, 2025	FDA	Warning letter	FDA document, warning letter, December 12, 2025, on fda.gov
June 12, 2023	FDA	Warning letter	FDA document, warning letter, June 12, 2023, on fda.gov

References

Sources as of October 4, 2026