Ipamorelin is a research peptide studied in vitro as a selective agonist at the GHS receptor (the ghrelin receptor), and selectivity is a defining feature researchers characterize in cell-based assays. This profile describes its target and how selectivity is measured.
What is ipamorelin?
Ipamorelin is a synthetic peptide used as a reference compound in growth-hormone-secretagogue research. It is described here only by structure and molecular target, as a laboratory material; the residue-by-residue chemistry is in ipamorelin peptide: pentapeptide structure and stability.
What does "selective" mean here?
Selectivity means a compound engages its intended receptor (the GHS receptor) with little activity at related receptors. For ipamorelin, selectivity at the GHS receptor is a property of interest in receptor panels.
How selectivity is characterized in vitro
Researchers run binding and cell-based signaling assays across a panel of receptors and compare the response at the GHS receptor against off-target receptors. A large gap indicates selectivity.
Why selectivity is studied
A selective reference compound is a cleaner tool for probing a single receptor pathway, because the readout is less confounded by off-target activity.
Related research guides
- GH secretagogues research overview
- GHRH analogs vs GH secretagogues
- GHS-receptor signaling
- Ipamorelin vs Tesamorelin
- Ipamorelin peptide: pentapeptide structure and stability
- CJC-1295 + ipamorelin blend: in-vitro profile
Research-use note
Ipamorelin is supplied as a research material for in vitro research use only. It is not for human or animal use.
Related research: Ipamorelin.








