Ipamorelin Research Guide: The Selective Secretagogue

Early growth-hormone secretagogues had a selectivity problem — GHRP-6 and GHRP-2 activate their target receptor and also nudge cortisol and prolactin pathways in models. Ipamorelin was designed to fix exactly that, and its clean receptor profile made it the modern standard.

Receptor pharmacology

Ipamorelin is a pentapeptide agonist of the ghrelin receptor (GHS-R1a). Published models show its signalling is unusually specific: GH-axis activity without meaningful cortisol/prolactin co-stimulation. In experimental design terms, fewer confounds.

Combination work

Paired with CJC-1295 (a GHRH-receptor analogue), ipamorelin allows dual-pathway secretagogue studies — two receptors, two mechanisms, one endpoint. Our blend vial supplies the pair at fixed 5mg+5mg ratio for exactly this work.

Handling and sourcing

Lyophilised at -20°C, reconstituted 2-8°C. Available in 5mg and 10mg vials, ≥99% HPLC verified, Batch docs on request, Australian express dispatch.

For laboratories and peptide businesses buying at volume, wholesale trade packs — sourced and tested in Australia — are available through our wholesale and white-label page.

All compounds discussed are for in-vitro laboratory research only and are not for human or veterinary use.