GHRP-2
GHRP-2 is studied as a growth hormone secretagogue; synthetic hexapeptide containing d-amino acids and 2-naphthylalanine in biochemical and physiological models.
GHRP-2 Biological Classification
Investigated within physiological and chemical models.
What kind of compound
Peptide
Growth hormone secretagogue.
Human testing on file
0human records
0 animal · 0 total indexed. No plain-English evidence summary on file.
Regulatory position
FDA compounding Category 2
Studied for
Growth hormone secretagogues
Reviewed 15 September 2026
Known safety concerns in this file
- No sourced human safety summary is recorded for this compound.
Commonly compared with
No comparison set is recorded for this compound yet.
Open side-by-side comparison →What is GHRP-2?
GHRP-2 is classified as a growth hormone secretagogue; synthetic hexapeptide containing d-amino acids and 2-naphthylalanine. A synthetic growth hormone-releasing hexapeptide, INN pralmorelin, with no FDA-approved drug product. It is on FDA's active 503B Category 2 table for injectable and nasal routes, and is named on the WADA Prohibited List.
Why are people interested in it?
Researchers and clinicians study GHRP-2 primarily to understand its biological interactions, receptor binding affinity, and potential role within its biochemical class.
Primary Research Categories
- Growth hormone secretagogues
How does it work in the body?
GHRP-2 interacts with specific cellular receptors and metabolic pathways corresponding to its structural classification as a growth hormone secretagogue; synthetic hexapeptide containing d-amino acids and 2-naphthylalanine.
Biological Pathway Overview
GHRP-2 Receptor & Target Interactions
This compound is evaluated in scientific research for its interactions with target cellular receptors and signaling cascades. Consult the evidence section below for specific peer-reviewed papers.
Target Pathway
Engages specific cellular signaling cascades characteristic of its structural family.
Endocrine/Paracrine Activity
Investigated for its regulatory effects on local tissue synthesis and cellular signaling.
What has actually been demonstrated in humans?
Evidence for GHRP-2 is currently derived primarily from laboratory or preclinical models. Consult the published evidence file for specific indexed studies.
Pharmaceutical Reality vs. Unregulated Research Chemicals
GHRP-2 is not an FDA-approved medication. Always verify chemical identity and testing documentation before interpreting research literature.
What is still uncertain or unknown?
Controlled human clinical trials evaluating GHRP-2 for therapeutic efficacy, safety, and pharmacokinetics are limited or absent in peer-reviewed Western registries.
Companion Resources & Guides
Research at a Glance
Open the full evidence file (0 records)No evidence records in this file yet.
What Has Actually Been Studied
What is Still Unknown
What we know
Editorial reading of the records below, labelled as Therapept analysis. How records are built
What remains uncertain
Preparation and Handling
Lyophilized peptides ship as freeze-dried powders; whatever happens next involves diluents, concentrations and storage conditions that are compound- and product-specific.
United States Regulatory Status
FDA compounding Category 2
- No approved drug product exists in Drugs@FDA.
- Listed by FDA as “Growth hormone releasing peptide-2 (GHRP-2)” on the active Category 2 table for 503B compounding, for injectable and nasal routes of administration, added 29 September 2023.
- FDA's published concerns include immunogenicity risk from aggregation and peptide-related impurities, the added characterisation complexity of an unnatural amino acid, and reports of serious adverse events in patients who received GHRP-2.
- No registered studies were returned by ClinicalTrials.gov for the intervention name GHRP-2 at review.
WADA Anti-Doping Status
Named at S2.2.4 among GH-releasing peptides, as “GHRP-2 (pralmorelin)”. Prohibited at all times.
Technical Chemical SpecificationsClick to view CAS, sequence, and molecular formulas
- Molecular weight
- 818.0 g/mol
- Sequence length
- 35 chars
- CAS number
- 158861-67-7
- PubChem CID
- 6918245
- Compound class
- Growth hormone secretagogue; synthetic hexapeptide containing D-amino acids and 2-naphthylalanine
- Sequence
- D-Ala-D-2-Nal-Ala-Trp-D-Phe-Lys-NH2
- Molecular formula
- C45H55N9O6
- Molecular weight
- 818.0 g/mol
- CAS number
- 158861-67-7
- PubChem CID
- 6918245
Sources
Last reviewed 15 September 2026 · Compiled by Therapept Editorial · How these records are built
