Ipamorelin is a synthetic pentapeptide, five amino acids engineered to activate the ghrelin receptor (GHS-R), the second of the two pathways that drive growth-hormone-axis research. Its defining property in the research literature is selectivity: among the classic secretagogue peptides, ipamorelin is the one characterized as acting on its target receptor with minimal activity on the other signaling axes that earlier compounds in the class also touch. Heartland Bio Labs supplies ipamorelin for laboratory research in 5mg and 10mg vials with independent verification.
What ipamorelin is
The ghrelin-mimetic peptides, historically called GHRPs, were developed in generations, each refining receptor behavior. GHRP-6 and GHRP-2 came first and remain research staples, but both show activity beyond the ghrelin receptor in preclinical characterization. Ipamorelin, a later design built around unnatural amino acids for stability and receptor fit, is the family's selectivity benchmark: the tool a laboratory reaches for when the study design needs ghrelin-receptor signaling isolated from everything else. Structural detail is in our ipamorelin research overview.
The other half of the GH axis
Ipamorelin belongs to the ghrelin-receptor side of the growth hormone axis family. Our GH-axis peptide family map lays out both branches of the family and where each catalog compound sits.
Growth-hormone-axis research runs on two receptor systems, and ipamorelin covers one of them. The other is the GHRH receptor, served in this catalog by sermorelin (the minimal native fragment), tesamorelin (the stabilized full-length analogue), and CJC-1295 (the long-half-life engineered fragment). Because the two pathways converge on related outcomes through different receptors, they are frequently studied together, which is what our fixed-ratio CJC-1295 + ipamorelin blend exists for.
Product characteristics
- Synthetic pentapeptide, ghrelin receptor (GHS-R) agonist
- Built on unnatural amino acid residues for stability and receptor selectivity
- Approximate molecular weight: 711.9 g/mol
- Supplied as white lyophilized powder in sealed vials
- Available strengths: 5mg and 10mg; a 2mg vial appears with a notify option when not in stock
- HPLC purity and mass spectrometry identity, tested by an independent laboratory
- For laboratory research use only
How this product is verified
Ipamorelin is tested by an independent analytical laboratory, HPLC for purity and mass spectrometry for identity, with certificates published in our COA portal before you order. A five-residue peptide with unnatural amino acids is exactly the case where identity confirmation earns its keep: the chromatogram alone cannot distinguish a correct synthesis from a close miss. Our guide to reading a peptide certificate of analysis covers what to check.
Strengths and pricing
Ipamorelin ships in 5mg vials at $44 and 10mg vials at $79, both in stock, with same-day dispatch from the Tulsa, Oklahoma area on orders before 2:00 PM Central. Programs pairing it with a GHRH-side compound can order the singles separately to control ratios, or take the blend at a fixed 5mg/5mg. Volume runs through our wholesale program.
Storage and handling
Keep lyophilized vials sealed, cool, dry, and away from light, refrigerated long term. Reconstitute with bacteriostatic water, refrigerate the solution, and use it within the window your research protocol defines.
Reconstitution math
Work out concentration (mg/mL), amount per volume and molarity for any vial size with the general peptide calculator. For the bench procedure see how to reconstitute peptides.
Research use only
Ipamorelin from Heartland Bio Labs is sold strictly for laboratory research and identification purposes. It is not a drug, it has not been evaluated by the FDA, and it is not for human or veterinary use of any kind. By purchasing, you affirm that you are qualified to handle research compounds and agree to our research use policy.
