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Comparisons/Ipamorelin vs Sermorelin
PEPTIDE COMPARISON

Ipamorelin vs Sermorelin

Two unapproved growth-hormone-axis peptides with different mechanisms and evidence histories.

QUICK ANSWER

Ipamorelin vs Sermorelin: the main difference.

Ipamorelin and sermorelin stimulate the growth-hormone axis through different receptors. Neither has decision-grade evidence for generalized anti-aging, sleep, or body-composition claims, and neither has a current FDA-approved product.

Decision fieldIpamorelin Sermorelin
Human researchEarly pharmacology and limited clinical studiesHistorical diagnostics and deficiency research
MechanismGhrelin-receptor agonistGHRH(1-29) analog
FDA statusNo approved productNo current approved product identified
Main uncertaintyLong-term clinical benefit and safetyModern outcomes evidence
2026 WADAProhibited at all timesProhibited at all times

SOURCES

Ipamorelin vs Sermorelin sources.

FDA / 2024–2026FDA briefing and compounding safety concerns for ipamorelinU.S. FDA WADA / 20262026 Prohibited ListWorld Anti-Doping Agency FDA / 2026Drugs@FDA databaseU.S. FDA

RELATED QUESTIONS

Questions related to Ipamorelin vs Sermorelin.

What is Ipamorelin?What is Sermorelin?What is the evidence for Ipamorelin?What is the evidence for Sermorelin?

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