01At a Glance
| Compound | GHRP-2 (Pralmorelin; KP-102) |
| Classification | Endocrine research compound |
| Molecular weight | 817.97 g/mol |
| Sequence / Form | D-Ala-D-2-Nal-Ala-Trp-D-Phe-Lys-NH2 |
| Purity | ≥99% HPLC, identity verified by mass spectrometry |
| Documentation | Batch-specific Certificate of Analysis available |
| Appearance | White lyophilized powder |
| Storage | Store sealed at 2–8°C. Long-term storage per certificate guidance. |
| Use | Research Use Only. Not for human or veterinary use. |
02Mechanism of Action
GHRP-2 (pralmorelin) is a synthetic hexapeptide that acts as an agonist at the growth-hormone secretagogue receptor (GHS-R1a), stimulating growth-hormone release from the pituitary in research models.
It is studied as a potent GH secretagogue, with literature noting modest effects on ACTH, cortisol, and prolactin relative to highly selective agents — a useful contrast in secretagogue-specificity research.
Research framing only · No human-use claims
03Research Context
- GHS-R1a agonism and GH-secretion assays
- Growth-hormone-secretagogue potency research
- Pituitary hormone-selectivity comparison models
- GH-axis endocrine studies
04Quality & Verification
Ethos Bio presents compound information with an emphasis on identity verification, purity analysis, certificate access, and storage guidance. Product-specific documentation is available through the certificate page where applicable. Cold-chain shipping is available where required, and inventory is held under refrigerated conditions at our fulfillment center with temperature-logging protocols in place.
05FAQ
What is GHRP-2?
GHRP-2 (pralmorelin) is a growth-hormone-releasing hexapeptide studied as a GHS-R1a agonist for GH secretion in research models. It is a research-use-only compound.
What is the CAS number of GHRP-2?
GHRP-2 has CAS number 158861-67-7 and a molecular weight of approximately 817.97 g/mol.
How does GHRP-2 compare to Ipamorelin?
Both are ghrelin-receptor agonists studied as GH secretagogues; Ipamorelin is noted for greater selectivity, while GHRP-2 is studied as a potent secretagogue with comparatively broader hormone effects.
How should GHRP-2 be stored?
GHRP-2 ships lyophilized and should be handled per standard research-peptide practice — kept cold, protected from light and moisture, and reconstituted only for laboratory use. Cold-chain handling is used where required. For research use only.
Is GHRP-2 approved for human use?
No. GHRP-2 is sold strictly for laboratory research use only and is not a drug or supplement. It is not approved for human or veterinary use or consumption.
How is GHRP-2 tested at Ethos Bio?
Every GHRP-2 lot is independently verified by MZ Biolabs, a third-party analytical laboratory in Arizona, on a five-point panel — RP-HPLC purity, HPLC-MS identity, endotoxin (LAL), heavy metals, and sterility. A lot-specific certificate of analysis ships with the vial. See How We Test for the full methodology.