Home›Research›Compare›Ghrelin vs Ipamorelin
Peptide ComparisonGhrelin vs Ipamorelin
Both are GH / IGF Axis peptides.
Ghrelin
acyl ghrelin
Half-life: ~24 min (initial), ~146 min (terminal)
3 providers listed
Ipamorelin
NNC 26-0161
Half-life: 2 hours
463 providers listed
Ghrelin carries stronger published evidence (RCT, 5 key studies) than Ipamorelin (RCT, 5); both are research compounds.
Ghrelin
Half-life
~24 min (initial), ~146 min (terminal)
Ipamorelin
Half-life
2 hours
| Your goal | Better option |
|---|---|
| Stronger clinical evidence | Ghrelin |
| More provider options (3 vs 463) | Ipamorelin |
Research summary only — not medical advice. Consult a qualified provider before making any decisions.
Ghrelin
Ipamorelin
Ghrelin
A Secondary, Subgroup Analysis of Alcohol Cue-Exposure Craving in Response to Pharmacological Inhibition of t…
Pilot clinical trial of macimorelin to assess safety and efficacy in patients with cancer cachexia
Safety, tolerability, pharmacokinetics, and pharmacodynamics of macimorelin in healthy adults: Results of a s…
Constant intravenous ghrelin infusion in healthy young men: clinical pharmacokinetics and metabolic effects
+1 more
Ipamorelin
Prospective, randomized, controlled, proof-of-concept study of the Ghrelin mimetic ipamorelin for the managem…
GH secretagogues increase bone mineral content in adult female rats
Therapeutic Peptides in Aesthetic, Metabolic and Endocrine Conditions: Effects, Safety, Clinical Applications…
Injectable Peptides in Sports Medicine: A Structured Narrative Review of Evidence, Safety, and Antidoping Imp…
+1 more
About Ghrelin
Must be acylated at Ser3 (by GOAT enzyme) for GHSR-1a binding. Receptor activation in the pituitary stimulates GH release; hypothalamic action via NPY/AgRP neurons increases appetite and reduces energy expenditure.
About Ipamorelin
Ipamorelin binds to the ghrelin receptor (GHSR-1a) and stimulates dose-dependent GH release with a clean hormonal profile. Unlike GHRP-6 or hexarelin, it does not significantly stimulate appetite-related pathways or cortisol secretion at standard research doses. This selectivity makes it a frequently studied peptide for protocols where hormonal side-effect profiles are a consideration.
Information below reflects published research data only — not medical advice. Consult a qualified provider before use.
Ghrelin
Under clinical review
Being verified by our medical team before we display contraindications for this peptide.
Ipamorelin
Under clinical review
Being verified by our medical team before we display contraindications for this peptide.
Research protocols routinely measure IGF-1 to track GH axis activity before and during use. Fasting glucose and insulin are monitored because GH elevation can reduce insulin sensitivity over time.
global — WADA
This compound falls under WADA Prohibited List category S2 (Peptide Hormones, Growth Factors, Related Substances and Mimetics), prohibited at all times for competing athletes.
sourceIpamorelin
CJC-1295
Research suggests Ipamorelin and CJC-1295 may produce enhanced growth hormone release effects when combined. CJC-1295 provides sustained GHRH receptor stimulation while Ipamorelin provides pulsatile ghrelin receptor stimulation — complementary pathways studied in GH secretion research.
Sermorelin
Research suggests Sermorelin and Ipamorelin may produce complementary growth hormone release effects when combined. Sermorelin acts as a GHRH analogue via pituitary receptors, while Ipamorelin acts via ghrelin receptors — dual-pathway stimulation studied in GH optimization research.
GLP-1 agonists
Research notes metabolic pathway overlap between growth hormone-releasing peptides and GLP-1 agonists. Both compound classes influence metabolic signaling; limited research has studied their combined effects. Consult your prescriber before combining.
Ghrelin
Not enough vendor pricing yet.
Ipamorelin
Where to source these peptides
Ghrelin
3 listed
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Providers offeringIpamorelin
463 listed
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PeptideBase lists providers for educational research purposes only. Always consult a qualified healthcare professional before obtaining or using any peptide.
More GH / IGF Axis Comparisons
Browse all peptides →Educational research tools — not medical advice.
Cite this page
Data last updated August 26, 2026
Free to reference and republish with attribution to PeptideBase. Choose a format:
PeptideBase. (2026). Ghrelin vs Ipamorelin — Per-mg Price Comparison. Retrieved September 12, 2026, from https://peptidebase.io/peptides/compare/ghrelin/ipamorelin