{"product_id":"ghrp-2","title":"GHRP-2","description":"\u003cdiv class=\"pb-product-desc\"\u003e\n\u003ch2\u003eGHRP-2 — Growth Hormone Releasing Hexapeptide for Endocrine Research\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eGHRP-2\u003c\/strong\u003e (Growth Hormone Releasing Peptide 2), also designated as Pralmorelin, is a synthetic hexapeptide (D-Ala-D-2Nal-Ala-Trp-D-Phe-Lys-NH₂) that acts as a potent agonist of the growth hormone secretagogue receptor (GHS-R1a), commonly known as the ghrelin receptor. Developed through systematic structure-activity relationship studies by Bowers et al. in the early 1990s, \u003cstrong\u003eGHRP-2\u003c\/strong\u003e is considered one of the most potent members of the GHRP family and serves as a critical pharmacological tool for investigating the somatotropic axis, ghrelin receptor biology, and pulsatile growth hormone secretion patterns.\u003c\/p\u003e\n\n\u003ch3\u003eMechanism of Action\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eGHRP-2\u003c\/strong\u003e binds to the GHS-R1a receptor on somatotroph cells of the anterior pituitary, activating phospholipase C through Gq\/11 signaling and triggering IP3-mediated calcium release from intracellular stores. This calcium mobilization stimulates the exocytosis of GH-containing secretory vesicles. Published research in \u003cem\u003eEndocrine Reviews\u003c\/em\u003e (1999) demonstrated that GHRP-2 acts synergistically with GHRH by recruiting additional somatotrophs and amplifying the secretory burst amplitude. Notably, GHRP-2 also suppresses somatostatin release from hypothalamic neurons, further disinhibiting GH secretion through a complementary mechanism.\u003c\/p\u003e\n\n\u003ch3\u003eKey Research Areas\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrowth Hormone Secretion:\u003c\/strong\u003e \u003cstrong\u003eGHRP-2\u003c\/strong\u003e is among the most potent GH secretagogues characterized, producing dose-dependent GH release with peak plasma concentrations within 15-30 minutes. Comparative studies have shown GHRP-2 elicits greater GH responses than GHRP-6 at equivalent doses, making it an ideal tool for studying somatotroph function.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGHS Receptor Pharmacology:\u003c\/strong\u003e As a high-affinity GHS-R1a agonist, GHRP-2 has been instrumental in characterizing receptor desensitization kinetics, internalization dynamics, and the biased agonism that differentiates synthetic GHS ligands from endogenous ghrelin signaling.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAppetite and Metabolic Regulation:\u003c\/strong\u003e Through its action on GHS-R1a receptors expressed in the arcuate nucleus, GHRP-2 influences NPY\/AgRP neuronal populations and modulates feeding behavior in rodent models, providing insights into the orexigenic pathways linking GH secretagogue signaling to energy homeostasis.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePituitary Reserve Testing:\u003c\/strong\u003e Researchers have utilized GHRP-2 as a diagnostic challenge agent in clinical studies published in \u003cem\u003eEuropean Journal of Endocrinology\u003c\/em\u003e to evaluate GH secretory capacity and distinguish between hypothalamic and pituitary causes of GH deficiency.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhy Researchers Choose Peptides BioLab\u003c\/h3\u003e\n\u003cp\u003eEvery batch of \u003cstrong\u003eGHRP-2\u003c\/strong\u003e supplied by Peptides BioLab undergoes rigorous HPLC and mass spectrometry analysis, ensuring ≥98% purity verified by an independent Certificate of Analysis (CoA). Our \u003ca href=\"\/products\/ghrp-2\"\u003eGHRP-2\u003c\/a\u003e is supplied as a lyophilized powder for maximum stability and shelf life, shipped worldwide from our state-of-the-art facilities in temperature-controlled packaging.\u003c\/p\u003e\n\n\u003ch3\u003eRelated Research Peptides\u003c\/h3\u003e\n\u003cp\u003eResearchers studying GH secretagogue receptor biology may also find these compounds relevant: \u003ca href=\"\/products\/ghrp-6\"\u003eGHRP-6\u003c\/a\u003e, \u003ca href=\"\/products\/ipamorelin\"\u003eIpamorelin\u003c\/a\u003e, and \u003ca href=\"\/products\/cjc-1295-no-dac\"\u003eCJC-1295 No DAC\u003c\/a\u003e. For a complete overview, browse our \u003ca href=\"\/collections\/growth-hormone\"\u003eGrowth Hormone Research\u003c\/a\u003e collection.\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003eFor research purposes only — Not for human consumption. All products are intended solely for in-vitro research and laboratory use.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Peptides BioLab","offers":[{"title":"Default Title","offer_id":61420646957386,"sku":"PBL-GHRP2-5MG","price":29.99,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0998\/9429\/6906\/files\/peptides-biolab-ghrp-2-peptide-5mg-research-grade.webp?v=1774393544","url":"https:\/\/peptides-biolab.com\/products\/ghrp-2","provider":"Peptides BioLab","version":"1.0","type":"link"}