Overview
Researchers can buy GHRP-2 research peptide from Advanced Peptide Science at 99%+ HPLC-verified purity. GHRP-2 (also known as Pralmorelin) is a synthetic hexapeptide ghrelin receptor (GHS-R1a) agonist with sequence H-D-Ala-D-2-Nal-Ala-Trp-D-Phe-Lys-NH2 and a molecular weight of 817.9 Da.
Bacteriostatic Water (BAC Water) 30ml is required for reconstitution of this lyophilized compound. Available separately: Bacteriostatic Water 30ml.
Research Background
GHRP-2 was developed as a refinement of the original GHRP-class compounds, including GHRP-6 and Hexarelin. It maintains the GHS-R1a agonism core mechanism but with structural changes that shift the receptor binding profile and reduce appetite-stimulation side effects relative to GHRP-6.
Mechanism of Action (Research Context)
Mechanism research investigates GHRP-2 binding at GHS-R1a with downstream Gq/PLC signalling driving GH-pulse-magnitude amplification at the pituitary somatotrophs. Comparative research against GHRP-6 examines receptor binding affinity, downstream pathway activation differences, and the relative magnitude of secondary effects (cortisol, prolactin, appetite-pathway engagement).
Research Applications
- GHS-R1a binding affinity comparison research vs other GHRPs
- GH-pulse-magnitude pharmacology studies
- Pituitary somatotroph response model research
- Selective vs non-selective GHRP comparison studies
- Comparative research with GHRP-6 and Hexarelin
Compound Specifications
| Molecular Weight | 817.9 Da |
| Sequence / Composition | H-D-Ala-D-2-Nal-Ala-Trp-D-Phe-Lys-NH2 |
| Appearance | White lyophilized powder |
| Purity | ≥ 99% (HPLC verified) |
| Storage | -20 °C, protect from light |
| Format | Lyophilized powder in sterile vial |
Quality Assurance
Each batch is independently verified by third-party analytical laboratories. Certificates of Analysis confirming ≥99% purity via HPLC are available on request at research@advancedpeptidescience.com.
Research Use Only. For Research Use Only. Not for human consumption. Not intended to diagnose, treat, cure, or prevent any disease. By purchasing you confirm research-only intent. These products have not been evaluated by the FDA.
Frequently Asked Questions
Buy GHRP-2 Pralmorelin research peptide USA?
Advanced Peptide Science supplies GHRP-2 (Pralmorelin) at 99%+ HPLC-verified purity with batch-specific COA available on request.
GHRP-2 GHRP-6 comparison research?
Both are hexapeptide GHS-R1a agonists. GHRP-2 (817.9 Da) is reported to have reduced appetite-stimulation relative to GHRP-6 (873.0 Da) in preclinical models, useful for isolating GH-axis effects from appetite-pathway effects.
Is GHRP-2 approved for human use?
Advanced Peptide Science supplies GHRP-2 exclusively for in vitro and in vivo scientific research. Not for human consumption. Research use only.


