GHRP-2 - 5MG

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The chemicals/materials for sale here are intended for laboratory and research use only, unless otherwise explicitly stated. They are not intended for human ingestion or for use in products that may be ingested.

What Is GHRP-2 - 5MG?

GHRP-2 (growth hormone-releasing peptide 2), also known as pralmorelin, is a synthetic growth hormone secretagogue that triggers growth hormone release. It can be used as a diagnostic agent for the assessment of growth hormone deficiency (GHD). GHRP-2 was also under phase II investigations for the treatment of GHD and short stature. However, it was never marketed for these indications.

Further, research shows that it is involved in the regulation of appetite, sleep cycle and immune system. Like all other GH secretagogues, it is prohibited by the World Anti-Doping Agency (WADA) because of its potential to boost strength and performance. At Pinnacle Peptides, GHRP-2 for sale is exclusively available for research.

Structure Of GHRP-2 - 5MG

From Pubchem


IUPAC Name: (2S)-6-amino-2-[[(2R)-2-[[(2S)-2-[[(2S)-2-[[(2R)-2-[[(2R)-2-aminopropanoyl]amino]-3-naphthalen-2-ylpropanoyl]amino]propanoyl]amino]-3-(1H-indol-3-yl)propanoyl]amino]-3-phenylpropanoyl]amino]hexanamide
Synonyms: Pralmorelin, 158861-67-7 and KP-102
Molecular Formula: C45H55N9O6
Molecular Weight: 818.0 g/mol
Sequence: AXAWFK
CAS number: 158861-67-7
PubChem CID: 6918245

Mechanism Of GHRP-2 - 5MG

GHRP-2 is a synthetic agonist of the ghrelin/growth hormone secretagogue receptor. It binds to ghrelin receptors and stimulates the release of growth hormone. Research shows that it may partially act through the growth-releasing factor (GRF) receptor and increase GH secretion via protein kinase C and cAMP pathways [1]. Further, it blocks somatostatin release and plays a significant role in the regulation of appetite.

Pre-Clinical/Clinical Research

1. Appetite

GHS play a key part in the regulation of appetite. A clinical trial showed that GHRP-2 treatment twice a day for a year caused an increase in appetite in the first six months of study in 7/10 of prepubertal children [2]. Furthermore, another study was conducted on 7 healthy individuals to assess its effect on hunger. The participants were randomized to receive either a subcutaneous infusion of GHRP-2 or a placebo for 270 minutes, and then their food intake was measured. The results found that the treatment group ate 26-46% more as compared to the control group [3].

2. Muscle Growth and Healing

Research conducted on Yaks found that GHRP-2 injection increased both the diameter and area of myofibers in skeletal muscles. This particular effect might be due to the increased release of growth hormone and insulin-like growth factor-1 (IGF-1) induced by GHRP-2. Additionally, GHRP-2 has been shown to boost protein synthesis and enhance the mRNA expression of IGF-1 and growth hormone in the liver and skeletal muscles [4].

Furthermore, GHRP-2 shows protective effects against muscle proteolysis following injury. Research was conducted to explore the impact of GHRP-2 on the expression of E3 ubiquitin ligases in rats with thermal injury. GHRP-2 administration through slow in vivo release over 24 hours via minipump effectively downregulated the mRNA expression of IL-6 and E3 ubiquitin ligases, MuRF-1 and MAFbx. Moreover, GHRP-2 reduced total and myofibrillar protein breakdown in the rat EDL muscle induced by burns [5].

3. Cardioprotective Effects

GHRP-2 exert a beneficial effect on the heart. A study was conducted to check the impact of GHRP-2 on myocardial stunning in rabbit model. GHRP-2 treatment for 2 weeks was found to prevent diastolic dysfunction. On the other hand, recombinant GH didn’t exhibit this similar effect [6].

Moreover, research shows that GHRP-2 can prevent cardiac remodeling following myocardial infarction and improve ventricular dysfunction. Results from a study conducted on a hamster model revealed that GHRP-2 treatment reduced myocardial fibrosis. Additionally, it slowed down the progression of left ventricular remodeling and dysfunction [7].

4. Anti-inflammatory Effects

Ghrelin has anti-inflammatory effects and suppresses pro-inflammatory cytokines like TNF-α through the GHS receptor pathway. Lipopolysaccharides (LPS) damage the liver and increase the levels of TNF-α, transaminases and nitrates. Research conducted on LPS-treated rats found that GHRP-2 treatment alleviated the impact of LPS on the levels of transaminase, nitrate and TNF-α [8].

In another study, male Wistar rats with induced arthritis were treated with either saline water or GHRP-2 for eight days. The results revealed that GHRP-2 alleviated external symptoms of arthritis and reduced IL-6 levels. Furthermore, one study revealed that GHRP-6 prevent the release of IL-6 and nitrate. This suggests that GHRP-6 has anti-inflammatory activity potentially mediated by ghrelin receptors present in immune cells [9].


GHRP-2 is a man-made agonist of the ghrelin/GHS receptor, and it stimulates the release of growth hormone. It has been shown to exert cardioprotective effects, treat growth hormone deficiency and increase hunger. Further, it blocks proinflammatory cytokines and possesses anti-inflammatory properties. Like all other GHS, it might boost strength, performance and recovery following injury. It is prohibited by WADA and is not available as an FDA-approved drug. We don’t support its unwarranted use and offer GHRP-2 purchase for research and experimentation. Only buy GHRP-2 if you are an authorized researcher; don’t buy it for human consumption.


  1. Roh, S.G., et al., Mechanisms of action of growth hormone-releasing peptide-2 in bovine pituitary cells. J Anim Sci, 1997. 75(10): p. 2744-8.
  2. Mericq, V., et al., Changes in appetite and body weight in response to long-term oral administration of the ghrelin agonist GHRP-2 in growth hormone deficient children. J Pediatr Endocrinol Metab, 2003. 16(7): p. 981-5.
  3. Laferrère, B., C. Abraham, C.D. Russell, and C.Y. Bowers, Growth Hormone Releasing Peptide-2 (GHRP-2), Like Ghrelin, Increases Food Intake in Healthy Men. The Journal of Clinical Endocrinology & Metabolism, 2005. 90(2): p. 611-614.
  4. Hu, R., et al., Effects of GHRP-2 and Cysteamine Administration on Growth Performance, Somatotropic Axis Hormone and Muscle Protein Deposition in Yaks (Bos grunniens) with Growth Retardation. PLoS One, 2016. 11(2): p. e0149461.
  5. Sheriff, S., et al., Ghrelin receptor agonist, GHRP-2, attenuates burn injury-induced MuRF-1 and MAFbx expression and muscle proteolysis in rats. Peptides, 2009. 30(10): p. 1909-1913.
  6. Weekers, F., E. Van Herck, J.r. Isgaard, and G. Van den Berghe, Pretreatment with Growth Hormone-Releasing Peptide-2 Directly Protects against the Diastolic Dysfunction of Myocardial Stunning in an Isolated, Blood-Perfused Rabbit Heart Model**Presented in part at the Annual Meeting of the Belgian Endocrine Society, Brussels, November 20, 1999 (Young Investigator Award Winning abstract). This work was in part supported by a FUTURA Research Award (Voorzorgskas voor Geneesheren) 1998–1999 (to F.W.), research grants from the University of Leuven (OT 99/32 to G.V.d.B.), the Belgian Fund for Scientific Research (FWO G. 0144.00 & FWO G.3C05.95N) (to G.V.d.B.), and the Belgian Foundation for Research in Congenital Heart Diseases (to G.V.d.B. and F.W.). Endocrinology, 2000. 141(11): p. 3993-3999..
  7. Kato, Y., et al., Beneficial effects of growth hormone-releasing peptide on myocardial oxidative stress and left ventricular dysfunction in dilated cardiomyopathic hamsters. Circ J, 2010. 74(1): p. 163-70.
  8. Granado, M., et al., GH-releasing peptide-2 administration prevents liver inflammatory response in endotoxemia. American Journal of Physiology-Endocrinology and Metabolism, 2008. 294(1): p. E131-E141.
  9. Granado, M., et al., Anti-inflammatory effect of the ghrelin agonist growth hormone-releasing peptide-2 (GHRP-2) in arthritic rats. American Journal of Physiology-Endocrinology and Metabolism, 2005. 288(3): p. E486-E492.

Certificate of Analysis (COA)


High Performance Liquid Chromatography (HPLC)


Mass Spectrometry (MS)


What is GHRP-2?

GHRP-2, or Growth Hormone Releasing Peptide-2, is a synthetic peptide composed of six amino acids. It is a member of the group of substances called growth hormone secretagogues, which promote the release of growth hormone from the pituitary gland. Ghrelin receptors are found in the hypothalamus and pituitary gland, and GHRP-2 functions by attaching to these receptors. Growth hormone release increases as a result of GHRP-2's binding to this receptor, which sets off a series of signaling events. Attention has been drawn to this peptide because of its prospective uses in both academic and medical settings, including the investigation of growth hormone insufficiency, stimulation of muscle growth, and support for the treatment of a number of ailments.

GHRP-2 Research

GHRP-2 is a synthetic peptide that has attracted significant attention in scientific research due to its potential applications in various fields. Lets explores the key areas of its research, highlighting its effects and potential benefits.

Stimulation of Growth Hormone Release:

The potential of GHRP-2 to trigger the release of growth hormone (GH) is one of the main topics of its study. The ghrelin receptor, which is present in the hypothalamus and pituitary gland, is where GHRP-2 exerts its effects. This binding starts a chain of events that increases GH secretion. In both laboratory and clinical trials, researchers have thoroughly examined the dose-response relationship of GHRP-2 and its effectiveness in boosting GH release.

Muscle Growth and Recovery:

The ability of GHRP-2 to encourage muscle growth and facilitate recovery has been demonstrated. Its capacity to boost muscle strength and increase muscle mass has been shown in studies. The peptide's capacity to induce GH release, which is essential for protein synthesis and muscle repair, contributes to its anabolic effects. Athletes' recovery times have been sped up and muscle wasting disorders treated using GHRP-2, according to research.

Anti-Aging Effects:

Potential anti-aging benefits of GHRP-2 are a further topic of scientific focus. Age-related problems result from a drop in GH production as people get older. Administration of GHRP-2 has produced encouraging results in raising GH levels, which may help lessen the consequences of aging. According to research, it may increase overall vitality, improve skin suppleness, and lessen wrinkles. However, more research is required to determine its long-term efficacy and safety for anti-aging applications.

Metabolic Benefits:

Additionally researched for potential metabolic advantages is GHRP-2. According to research, GHRP-2 can boost glucose metabolism and accelerate lipolysis, the breakdown of fat. In research involving obesity, insulin resistance, and metabolic syndrome, this peptide has showed promise. Its potential as a therapeutic treatment for metabolic disorders is being investigated by researchers.

Neuroprotective Effects:

Recent studies imply that GHRP-2 might have neuroprotective qualities. Studies on animal models have demonstrated that GHRP-2 treatment can protect neurons, increase neurogenesis, and boost cognitive performance. These results have prompted interest in its research as a potential treatment for neurodegenerative diseases like Parkinson's and Alzheimer's.

Where to Buy GHRP-2

If you are looking to purchase GHRP-2 online for research purposes then look no further than Pinnacle Peptides. We provide superior GHRP-2 peptides as a dependable supply for research. In order to guarantee purity and consistency, our products go through stringent quality control procedures. You may browse and get GHRP-2 peptides with confidence using our simple online ordering system. We prioritize customer satisfaction and provide prompt shipping to ensure your research projects stay on track. Trust Pinnacle Peptides for your peptide needs and unlock the potential of this peptide in your scientific research.


The products we offer are intended for laboratory research use only. In purchasing any of these items, the customer acknowledges that there are risks involved with consumption or distribution of these products. These chemicals are NOT intended to use as food additives, drugs, cosmetics, household chemicals or other inappropriate applications. The listing of a material on this site does not constitute a license to its use in infringement of any patent. All of the products will be handled only by qualified and properly trained professionals. All customers represent and warrant that through their own review and study that they are fully aware and knowledgeable about the following: Government regulations regarding the use of and exposure to all products. The health and safety hazards associated with the handling of the products they purchase. The necessity of adequately warning of the health and safety hazards associated with any products. Pinnacle Peptides reserves the right to limit and/or deny sales of products to any unqualified individuals if we have reason to believe that misuse will occur.

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DISCLAIMER: The products sold on this site are not a drug nor is it intended to treat, diagnose, cure or prevent any disease, nor is it meant for ANY cosmetic purpose. Pinnacle Peptides makes no claims of alleged beneficial properties of any product on this site if injected or ingested in any manner. Our Peptides are exclusively distributed legally within the laws of safe harbor for research peptides and are to be used for that purpose ONLY. If any country’s governing bodies feel we are in violation of their laws regarding peptides, we ask you contact us immediately via [email protected] so we may expeditiously rectify the situation.All customers represent and warrant that through their own review and study that they are fully aware and knowledgeable about the following:Their government regulations regarding the importation, purchase, possession and use of peptides. The health and safety hazards associated with the handling of peptides in a research setting. That peptides are NOT intended to be used as a food additive, drug, vitamin, supplement, cosmetic or any other inappropriate application. Such a sale would be otherwise denied.
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