GHRP-2 (Pralmorelin) — High-Purity 5mg Research Peptide
GHRP-2, also known as Pralmorelin, is a high-purity synthetic hexapeptide designed for intensive biochemical research. Whether you are investigating growth hormone secretion or metabolic homeostasis, this 99% purity lyophilized powder provides the precision and stability required for rigorous laboratory protocols.
Specifications
| Product Designation | GHRP-2 (Pralmorelin) |
| Quantity per Vial | 5mg |
| Physical Presentation | White lyophilized powder |
| Purity Standard | 99% (RP-HPLC verified) |
| Molecular Formula | C₄₅H₅₅N₉O₆ |
| Molecular Weight | 817.9 g/mol |
| CAS Registry Number | 15 8861-67-7 |
| Amino Acid Sequence | H-D-Ala-D-2-Nal-Ala-Trp-D-Phe-Lys-NH₂ |
| Storage Temperature (Powder) | Below –20°C (–80°C strongly preferred) |
| Storage Temperature (Reconstituted) | 2–8°C (short-term); –20°C or below (extended) |
| Stability Duration (Room Temp) | Approximately three weeks (lyophilized state) |
Product Overview and Mechanism of Action
GHRP-2 is a synthetic molecule structured similarly to met-enkephalin. Unlike standard neurotransmitters, GHRP- 2 functions by engaging specifically with ghrelin-binding receptors, known as GHS-Rs, located on pituitary cells and throughout the nervous system.
When GHRP-2 binds to these receptors, it initiates a complex intracellular signaling cascade. This process is heavily studied for its ability to stimulate the secretion of growth hormone (GH) from the anterior pituitary and the subsequent upregulation of insulin-like growth factor-1 (IGF-1).
Beyond growth hormone regulation, this peptide is a subject of intense scientific interest due to its multifaceted biological effects. Research suggests it may influence appetite-regulating neuropeptides (such as NPY and AgRP), influence pain perception through selective opioid receptor interaction, and potentially impact cardiovascular and immune health through the modulation of oxidative stress and T-cell's activity.
Key Research Features:
- High Purity: 99% purity verified by RP-HPLC analysis.
- Precision Composition: Hexapeptide structure (H-D-Ala-D-2-Nal-Ala-Trp-D-Phe-Lys-NH₂).
- Versatile Application: Suitable for studies in endocrinology, metabolism, and neuroimmunology.
- Stability: Designed for long-term shelf life when stored under appropriate frozen conditions.
Frequently Asked Questions
What is GHRP-2?
GHRP-2 is a synthetic pentapeptide/hexapeptide used in research to study growth hormone secretion. It acts as an agonist for the GHS-R receptor, which is involved in appetite regulation and metabolic processes.
How should this product be stored?
For maximum stability, the lyophilized powder must be stored below –20°C, with –80°C being strongly preferred. Once reconstituted, the solution should be kept at 2–8°
C for short-term use, or returned to –20°C for extended preservation.
What is the purity of the GHRP-2 vial?
This product is manufactured to a high pharmaceutical research standard, offering a purity of 99% as verified by RP-HPLC testing.

