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No. 033peptide

Ipamorelin

Ipamorelin is a peptide that is research only, not approved for human use in the US.

Also known as Ipamorelin acetate, NNC 26-0161

Ipamorelin mimics ghrelin to trigger growth hormone release. It was tested by a drug company for bowel recovery after surgery and is now marketed, often with CJC-1295, for muscle, fat loss and sleep.

Empty glass test tubes with white caps neatly arranged in a rack, pale and clinical in tone.
Research only · Not for human use
Not approved for human useNot approved for human use in the US. We list it so you can learn what it is, but we do not link to anyone selling it. If you are considering it, a clinician can talk through approved alternatives.
Lawful options this page mentions:Sermorelin

Is Ipamorelin legal in the US?

Not approved for human use in the US. We list it so you can learn what it is, but we do not link to anyone selling it. Not FDA-approved. Its 503A nomination was withdrawn, so it is not on the bulks list or under evaluation, and FDA still lists it in Category 2 for outsourcing facilities; there is no lawful compounding route.

As of September 23, 2026.

Key takeaways

  • Ipamorelin is a peptide that triggers growth hormone release. It is not approved for human use.
  • Its one real drug trial, for bowel recovery after surgery, did not show a clear benefit.
  • FDA cited serious adverse events, including a death reported in the literature, in its safety listing.
  • It is banned in sport, and there is no lawful compounding route.

How does Ipamorelin work?

Proposed from lab and animal studies

Preclinical and early human pharmacology: ipamorelin mimics ghrelin, the "hunger hormone", at the receptor that tells the pituitary to release growth hormone. In animals it did this without raising stress hormones like cortisol.

It was never tested in trials for the muscle, fat-loss or sleep uses it is marketed for.

Bright blue liquid pours from a glass flask into a row of clear laboratory test tubes under clean lab light.
A gloved hand holds a graduated glass beaker of clear liquid in a bright modern laboratory.

What does the evidence say about Ipamorelin?

Animal & lab studies only

Human data are limited to early pharmacology and a phase 2 surgical trial that did not show clear benefit; there are no trials for the uses it is marketed for.

Why are clinicians and regulators cautious about Ipamorelin?

Clinicians note that growth hormone boosters sold online are experimental, of uncertain quality, and prohibited in sport.

Summaries of published guidelines, drug labels, regulators and reviews, each attributed to its source. DiscoverMedica does not employ clinicians.

Who should avoid Ipamorelin?

Especially important to avoid if

  • People with diabetes or prediabetes, since growth hormone can raise blood sugar
  • Anyone with a current or past cancer
  • Pregnancy or breastfeeding
  • Competitive athletes in tested sport
  • Anyone considering buying it online: it is not made to drug standards

What are the risks and side effects of Ipamorelin?

  • Not approved for human use. Products sold online as "research chemicals" are not made to drug standards, so identity, purity, sterility and dose are unverified.
  • FDA cited immunogenicity risks and reports of serious adverse events, including death, in its Category 2 review.
  • Growth hormone stimulation can raise blood sugar and cause fluid retention.
  • Prohibited in sport by the World Anti-Doping Agency.

What should you ask a clinician about Ipamorelin?

  • Do I have a real growth hormone problem that should be tested?
  • What proven approaches fit my body-composition goal?

These save with the compound when you add it to My Journal, so they’re on the printout for your visit.

Where can I get Ipamorelin?

Ipamorelin is not approved for human use, so DiscoverMedica links to no seller.

We don’t link to sellers of research-only compounds. Products sold “for research use only” are not made for people and are not held to pharmaceutical quality standards.

Compare and learn

Ipamorelin: questions, answered

Does ipamorelin build muscle?

No trials show that. It has only been studied for bowel recovery after surgery, where it did not clearly help.

Is it the same as sermorelin?

No. Sermorelin mimics a different signal (growth-hormone-releasing hormone) and has a compounding history. Ipamorelin mimics ghrelin and has no lawful compounding route.

Can I get it from a telehealth provider?

No. Ipamorelin is not FDA-approved and has no lawful compounding route, so there is nothing a licensed telehealth provider can legitimately prescribe. If a site offers it, treat that as a warning sign. DiscoverMedica does not link to anyone selling it.

What does "research use only" mean?

It means the product is not made or tested for people. FDA has sent warning letters to sellers who use that label while making health claims, and says it judges a product by how it is marketed, not by the disclaimer.

Important safety information

Ipamorelin is not approved for human use in the US. Not approved for human use in the US. We list it so you can learn what it is, but we do not link to anyone selling it.

Key risks

  • Not approved for human use. Products sold online as "research chemicals" are not made to drug standards, so identity, purity, sterility and dose are unverified.
  • FDA cited immunogenicity risks and reports of serious adverse events, including death, in its Category 2 review.
  • Growth hormone stimulation can raise blood sugar and cause fluid retention.
  • Prohibited in sport by the World Anti-Doping Agency.

Avoid it especially if

  • People with diabetes or prediabetes, since growth hormone can raise blood sugar
  • Anyone with a current or past cancer
  • Pregnancy or breastfeeding
  • Competitive athletes in tested sport
  • Anyone considering buying it online: it is not made to drug standards

This is not a complete list of risks. Talk to a licensed clinician or pharmacist about your own situation. If you have a severe reaction, call 911. You can report side effects to the FDA through MedWatch at 1-800-FDA-1088.

Sources

Also checked for this guide

Guide reviewed September 23, 2026.

Educational information only, not medical advice. It does not replace a conversation with a licensed clinician.

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