Home›Research›Compare›Ipamorelin vs Sermorelin
Peptide ComparisonIpamorelin vs Sermorelin
Both are GH / IGF Axis peptides.
Ipamorelin
NNC 26-0161
Half-life: 2 hours
517 providers listed
Sermorelin
GHRH 1-29
Half-life: 10–20 minutes
473 providers listed
Ipamorelin has a longer half-life than Sermorelin, so it generally needs less frequent dosing.
Ipamorelin
Half-life
2 hours
Sermorelin
Half-life
10–20 minutes
| Your goal | Better option |
|---|---|
| More selective GH release (minimal cortisol/prolactin impact in research) | Ipamorelin |
| More provider options (517 vs 473) | Ipamorelin |
| Longer clinical use history (FDA-approved 1997–2008) | Sermorelin |
| Lower typical cost per treatment cycle | Sermorelin |
| Standard base for ipamorelin + CJC-1295 combination protocols | Ipamorelin |
| Natural GHRH analog identical to endogenous fragment | Sermorelin |
Research summary only — not medical advice. Consult a qualified provider before making any decisions.
Ipamorelin
Sermorelin
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
Sermorelin
The GH response to low-dose bolus growth hormone-releasing hormone (GHRH(1-29)NH2) is attenuated in patients…
The relative roles of continuous growth hormone-releasing hormone (GHRH(1-29)NH2) and intermittent somatostat…
A new era of doping? Use of peptide and peptide-analog drugs in recreational and professional sport and bodyb…
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.
About Sermorelin
Sermorelin is a synthetic analogue of the first 29 amino acids of endogenous growth hormone-releasing hormone (GHRH). It binds to GHRH receptors on pituitary somatotrophs, stimulating pulsatile GH secretion in a physiological pattern that preserves the natural hypothalamic-pituitary feedback axis — contrasting with direct GH administration. Downstream IGF-1 elevation mediates many of its body composition, tissue-repair, and sleep quality effects.
Information below reflects published research data only — not medical advice. Consult a qualified provider before use.
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.
sourceSermorelin
Under clinical review
Being verified by our medical team before we display contraindications for this peptide.
Sermorelin clinical protocols measure IGF-1 as the primary marker of GH axis response. Fasting glucose and insulin are standard baseline assessments given GH's effect on insulin sensitivity.
Commonly stacked
EmergingIpamorelin and Sermorelin are reported to work together. 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.
Ipamorelin
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.
Sermorelin
Ipamorelin
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.
Ipamorelin
Sermorelin
Where to source these peptides
Ipamorelin
517 listed
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Providers offeringSermorelin
473 listed
Browse directory →
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 October 26, 2026
Free to reference and republish with attribution to PeptideBase. Choose a format:
PeptideBase. (2026). Ipamorelin vs Sermorelin — Per-mg Price Comparison. Retrieved October 26, 2026, from https://peptidebase.io/peptides/compare/ipamorelin/sermorelin