Ipamorelin
Research chemical — 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.
At a glance
- Best for
- Not established — investigational
- Main caution
- 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?
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
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
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 iPhone app.
Coming to App StoreDisclaimer: 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.