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GHRP-2 (Growth Hormone-Releasing Peptide-2) is a synthetic hexapeptide developed to stimulate the release of growth hormone (GH) from the pituitary gland. It belongs to a family of met-enkephalin analogues that include unnatural D-amino acids, designed to enhance stability and receptor affinity.
Researchers are particularly interested in GHRP-2 because of its ability to act at both pituitary and hypothalamic sites, making it a valuable tool for studying growth hormone regulation, neuropeptide signalling, and metabolic processes linked to GH release.
This product is part of our Premium range, meaning it is subject to a more extensive testing programme than standard peptides. In addition to the independent Certificate of Analysis (CoA) that we publish for every batch across our entire range, each batch of Premium GHK-Cu is additionally tested for endotoxins using the LAL (Limulus Amebocyte Lysate) method, and screened for heavy metals including lead, arsenic, mercury and cadmium. All testing is carried out by our ISO9001 certified UK partner laboratory, and the full results are available to view and download in our Quality Centre. This combination of purity analysis, endotoxin testing and heavy metal screening represents the gold standard of independent peptide quality assurance, and is unique to Pure Peptides UK within the UK market.
GHRP-2 belongs to the growth hormone secretagogue (GHS) class of peptides, which act through the ghrelin receptor (GHS-R1a) to promote the pulsatile release of GH. Unlike traditional GHRH analogues, GHRP-2 acts independently of GHRH pathways and can synergise with them, creating a robust research model for GH-axis dynamics.
This synthetic peptide is also referred to as Pralmorelin (KP-102) in the scientific literature and has been widely used in both pre-clinical and endocrinological studies exploring appetite regulation, endocrine feedback, and metabolic control mechanisms.
GHRP-2 binds to GHS-R1a receptors, located primarily in the hypothalamus and pituitary gland, triggering a cascade that stimulates growth hormone secretion.
This process is thought to involve:
Activation of G-protein coupled receptors (GPCRs) linked to calcium-ion signalling.
Increased GH release via modulation of intracellular cAMP and IP₃ pathways.
Potential indirect effects on appetite regulation through the ghrelin pathway.
These mechanisms make GHRP-2 a focus of ongoing research into growth regulation, energy balance, and hormonal feedback.
Endocrine Regulation Studies – Analysing how GHRP-2 interacts with hypothalamic and pituitary pathways to modulate GH release.
Metabolic Function and Appetite Research – Exploring GHRP-2’s potential influence on ghrelin-mediated appetite and energy balance.
GH Axis Mechanistic Modelling – Examining feedback loops and hormone pulses in GH-dependent systems.
Comparative Peptide Analysis – Studying potency, receptor affinity, and half-life relative to other GHRPs such as GHRP-6 or Ipamorelin.
Store lyophilised protein at –20 °C.
After reconstitution, aliquot to prevent repeated freeze–thaw cycles.
Reconstituted peptide may be stored at 4 °C for short-term use.
The lyophilised form remains stable until the stated expiry date when kept at –20 °C.
Source: Biosynthesis
Reconstitution: Reconstitute with Bacteriostatic Water
Product is prepared for laboratory research only.
GHRP-2 for sale at Pure Peptides UK is restricted to scientific research and educational purposes.
Only purchase GHRP-2 if you are a licenced researcher.
Images for illustration purposes only.
Premium GHRP-2 5 mg provides researchers with a high-purity growth hormone secretagogue ideal for studying GH release mechanisms, neuroendocrine signalling, and metabolic modulation. Its dual action on both pituitary and hypothalamic sites makes it a versatile peptide within the GHRP family, suitable for detailed exploration of GH regulation and energy-balance research.
| Weight | 6 g |
|---|---|
| Cap Colour | White |
