GHRP-2
Growth Hormone Releasing Peptide-2 · Pralmorelin
Popular for:Potent GH release, appetite stimulation, body composition
203
Total Studies
132
Human Studies
Animal
Evidence Level
Not Approved
FDA Status
Overview
GHRP-2 (Growth Hormone Releasing Peptide-2) is a synthetic hexapeptide that potently stimulates growth hormone release through the ghrelin receptor. It produces one of the strongest GH pulses among the GHRP family, with significant effects on appetite stimulation, cortisol, and prolactin.
Developed as a research tool for studying GH secretion, GHRP-2 has been studied in clinical settings for GH deficiency and cachexia. It is more potent than GHRP-6 but less selective than Ipamorelin.
Mechanism of Action
GHRP-2 acts as a ghrelin mimetic, binding to GHS-R1a receptors in both the pituitary and hypothalamus to stimulate GH release. It also suppresses somatostatin (the GH-inhibiting hormone), creating a dual mechanism that produces robust GH pulses. This dual action explains its higher potency compared to more selective GHRPs.
Key Research Benefits
Clinical Evidence Summary
Research Pipeline
203
Total Studies
132
Human Studies
Not FDA-approved. Research compound. Used in clinical studies for GH deficiency. FDA Category 2 status under review.
Key Studies / PubMed References
203 studies found on PubMed · showing top 25 by relevance
View all on PubMedBeyond the androgen receptor: the role of growth hormone secretagogues in the modern management of body composition in hypogonadal males.
ReviewSinha DK, Balasubramanian A, Tatem AJ, et al. · Translational andrology and urology · 2020
PMID: 32257855Laparoscopic Sleeve Gastrectomy Resolves Low GHRP-2-Stimulated Growth Hormone Levels in Obese Patients.
Human StudyOhara E, Tokuyama H, Kitamoto T, et al. · Obesity surgery · 2017
PMID: 28623445Effects of GHRP-2 and Cysteamine Administration on Growth Performance, Somatotropic Axis Hormone and Muscle Protein Deposition in Yaks (Bos grunniens) with Growth Retardation.
ReviewHu R, Wang Z, Peng Q, et al. · PloS one · 2016
PMID: 26894743Determination of growth hormone releasing peptides metabolites in human urine after nasal administration of GHRP-1, GHRP-2, GHRP-6, Hexarelin, and Ipamorelin.
ReviewSemenistaya E, Zvereva I, Thomas A, et al. · Drug testing and analysis · 2015
PMID: 25869809Detection of GHRP-2 and GHRP-6 in urine samples from athletes.
ReviewCox HD, Hughes CM, Eichner D · Drug testing and analysis · 2015
PMID: 25809000Side Effects & Safety
Known Interactions
No curated interaction entry is live for GHRP-2 yet.
Until the interaction table is fully populated, use the interaction checker and related peptides below to explore adjacent compounds and likely research pairings.
Frequently Asked Questions
Research Disclaimer
This page is for research and educational purposes only. The information presented is based on published scientific literature and does not constitute medical advice, diagnosis, or treatment recommendations. GHRP-2 is not approved by the FDA for human therapeutic use. Always consult a qualified healthcare professional before making any health-related decisions. The studies referenced are linked to their original PubMed sources for verification.