Growth hormone secretagogue · pharmacology research
What is Ipamorelin?
Ipamorelin is a synthetic peptide described as a growth hormone secretagogue: a substance that stimulates growth hormone release. This is different from injecting growth hormone itself.
How does Ipamorelin work?
Its pharmacology is associated with the ghrelin or growth hormone secretagogue receptor. Researchers study how this receptor influences hormone release. A change in hormone concentration is a biological measurement, not proof of improved fitness or recovery. [1]
What does the research show?
The original 1998 pharmacology paper described ipamorelin’s growth-hormone-releasing activity and selectivity. That research explains the compound’s classification; it does not establish an anti-ageing or bodybuilding treatment. [1]
What the evidence does not establish
The term selective describes activity in the tested setting. It does not mean that a substance has no adverse effects. Evidence for one route or study population cannot establish long-term safety for another.
Safety questions to discuss
FDA notes limited route-specific safety information and serious events in an intravenous clinical study. Those findings should not be simplified into a universal claim of safety. [2]
Frequently asked questions
Is ipamorelin growth hormone?
No. It is studied as a substance that stimulates release of growth hormone.
Does selective mean risk-free?
No. Pharmacological selectivity and clinical safety are different questions.
Sources and further reading
- Ipamorelin, the first selective growth hormone secretagogue — pharmacology study, 1998
- FDA: ipamorelin safety considerations
These are selected sources, not a systematic review. Check publication dates, study methods and the exact substance tested. Artwork does not establish clinical benefit.