Evidence-based·Last reviewed May 30, 2026·How we grade evidence

Ipamorelin

PeptideResearch peptide

Useful mainly for not established — investigational.

Research compound — not an approved drug or dietary supplement

This compound is sold for research and is not FDA-approved for human use or as a dietary supplement. Human evidence is limited; purity and dosing of consumer products are unverified. The data below is an evidence review for education only — talk to a clinician before considering it.

Quick decision guide

May help most

Not established — investigational

Watch out for

Unapproved GH secretagogue with unknown long-term safety and unregulated research-grade purity

What is it

Ipamorelin is a synthetic pentapeptide that acts as a selective growth hormone secretagogue, mimicking ghrelin to stimulate the pituitary to release growth hormone. It is proposed to raise GH and IGF-1 with relatively little effect on cortisol or prolactin compared with some other secretagogues. It was investigated pharmaceutically but development was discontinued; it is not FDA-approved for any use, and human data are limited largely to small or early-phase studies, with no established long-term safety or efficacy profile. It is not a dietary supplement and is sold only 'for research use only.'

Is it worth it for you?

Use this as a quick fit check, not a diagnosis.

Probably skip if…

You expect an approved therapy — pharmaceutical development was discontinued and it is not FDA-approved
You would buy from 'research use only' vendors with no purity, sterility, or dosing oversight
You are not prepared for unknown long-term effects of chronically raising GH/IGF-1
You are uncomfortable with self-injection risks (infection, contamination)
You compete in sport — GH secretagogues are prohibited under WADA rules

Safety

Know the common side effects, key cautions, and who should avoid it.

Common side effects

Reported in limited settings: headache, flushing, transient injection-site reactions, increased appetite (ghrelin-mimetic effect)

Serious risks

  • Unregulated purity, sterility, and dosing of research-grade product

  • Unknown long-term effects of sustained GH/IGF-1 elevation, including theoretical risks for insulin resistance and growth of existing tumors

  • Injection-related infection and contamination risk

  • No clinical monitoring of hormone levels or glucose

Who should avoid it

  • Anyone without direct medical supervision
  • Pregnancy and breastfeeding
  • People with cancer or a history of cancer
  • People with diabetes or impaired glucose tolerance (without supervision)
  • Competitive athletes subject to anti-doping rules

Pregnancy & breastfeeding

Avoid — no safety data.

Choosing a product

What to look for on the label — and what to be skeptical of.

Be skeptical of…

'Proven' muscle-building, fat-loss, or anti-aging claims in humans
Vendors selling 'for research use only' product for human injection
Implying it is a safe or approved alternative to prescription growth hormone

Track Ipamorelin with Pilora

Set up dose reminders, check interactions, and join the community in the Pilora app.

Coming to App Store & Google Play
Evidence-based·Last reviewed May 30, 2026·Evidence current as of May 30, 2026·How we grade evidence

Disclaimer: This compound is not approved by the FDA for human use and is not a dietary supplement. This page is an educational review of available research — much of it preclinical or early-stage — not a recommendation to use it. Consumer product quality is unregulated. Consult a qualified clinician.