GH secretagogue · hexapeptide.
GHRP-2 (Growth Hormone Releasing Peptide 2; also called pralmorelin) is a synthetic hexapeptide ghrelin receptor agonist developed by Cyril Bowers' group. It is one of the first growth hormone secretagogues (GHS) developed for research. Supplied as research-grade material with 3rd-party HPLC verification and full Certificate of Analysis per lot.
GHRP-2 (Growth Hormone Releasing Peptide 2; also called pralmorelin) is a synthetic hexapeptide ghrelin receptor agonist developed by Cyril Bowers' group. It is one of the first growth hormone secretagogues (GHS) developed for research.
GHRP-2 is an agonist of the growth hormone secretagogue receptor type 1a (GHSR1a), the ghrelin receptor. Published work describes it as stimulating GH release via a mechanism distinct from GHRH — primarily through increased intracellular calcium in pituitary somatotrophs. It is synergistic with GHRH in co-administration studies.
GHRP-2 is approved in Japan as a diagnostic agent for GH deficiency. In other jurisdictions it remains a research compound. Reported side effects at research doses include transient cortisol and prolactin elevation. WADA prohibited (S2).
The above summarizes published research literature. This is not medical advice, a protocol, or a recommendation for use. This compound is supplied for laboratory research only.
GHRP-2 is a 6-residue peptide with molecular formula C45H55N9O6 and molecular weight of approximately 817.9 Da.
The full structural data and release specifications are in the Compound Profile section above. Every lot ships with an independently verified Certificate of Analysis.
Each lot is independently verified by a 3rd-party analytical laboratory (STERIS Labs, Alcami Analytical, or equivalent) before release. Release specification is HPLC purity ≥ 99.5% (typical > 99.8%), mass spectrometry identity match within ±0.5 Da, water content < 5.0% Karl Fischer, and endotoxin < 0.25 EU/mL by LAL (USP <85>).
Look up the full COA for your lot at coa-lookup.html.
All compounds ship at ambient temperature in discreet, tamper-evident packaging. Lyophilized peptide powder is stable at room temperature for typical transit windows, which is why research-grade vendors ship this way. Tracked; signature not required.
Store unopened lyophilized product at 2–8°C protected from light. Once reconstituted, most peptides are stable at 2–8°C for approximately 28 days (compound-dependent).
GHRP-2 is approved in Japan as a diagnostic agent for GH deficiency. In other jurisdictions it remains a research compound. Reported side effects at research doses include transient cortisol and prolactin elevation. WADA prohibited (S2).
All PeptideBros compounds are sold strictly as chemical reference materials for in-vitro laboratory research. They are not for human consumption.
HPLC-verified. Mass-spec confirmed. Ambient-stable transit. The paperwork other vendors hope you never ask for.