What is Ipamorelin?

The short answer

Ipamorelin is a short chain of five amino acids that is made in a lab.

  • What it is

    Ghrelin-receptor agonist that releases GH.

  • What people look into

    Muscle and exercise, aging, sleep

Get updates on Ipamorelin

What it is

Type
GH secretagogue pentapeptide
Also known as
ipamorelin acetate, ipa
How it works
Ghrelin-receptor agonist that releases GH.

Regulatory status

Not FDA-approved How we label status

As of October 4, 2026, Ipamorelin is not FDA-approved for any use and is not on FDA's 503A bulks list.

See Ipamorelin in the Index →

Federal (FDA)
Not FDA-approved
503A compounding
No category (nomination withdrawn; removed from Cat 2 2024-09-27); not on 216.23 as of 2026-10-07; not an approved-drug component; 503B Category 2 (as of October 7, 2026)
PCAC history
2024-10-29: against 0-12-1 (free base and acetate; uses reviewed: GHD, postoperative ileus); FDA staff: against
WADA 2026
S2.2.4

Timeline

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Timeline table
DateWhat happenedSource
Federal Register notice of an FDA Pharmacy Compounding Advisory Committee meeting lists ipamorelin among bulk drug substances under consideration for the 503A bulks list.Federal Register, event of September 18, 2024, on federalregister.gov

US enforcement actions

3 US enforcement actions since 2022.

Actions by US federal and state agencies whose documents name Ipamorelin. Each row links to the government's own document.

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US enforcement actions table
DateAgencyActionDocument
FDAWarning letterFDA document, warning letter, August 24, 2026, on fda.gov
US Justice DepartmentIndictmentJustice Department document, indictment, April 1, 2026, on justice.gov
FDAWarning letterFDA document, warning letter, January 26, 2022, on fda.gov

References

Sources as of October 4, 2026

  1. FDA: www.fda.gov/media/94155/download
  2. FDA: www.fda.gov/media/185412/download
  3. FDA: www.fda.gov/media/182088/download
  4. FDA: www.fda.gov/drugs/human-drug-compounding/certain-bulk-drug-substances-use-compounding-may-present-significant-safety-risks
  5. FDA: www.fda.gov/media/94164/download
  6. FDA warning letter, August 24, 2026
  7. WADA: www.wada-ama.org/sites/default/files/2025-09/2026list_en_final_clean_september_2025.pdf
  8. Internet Archive: web.archive.org/web/20241107074712id_/https://www.fda.gov/media/94155/download
  9. eCFR: www.ecfr.gov/current/title-21/chapter-I/subchapter-C/part-216/subpart-B/section-216.23
  10. FDA: api.fda.gov/drug/drugsfda.json