Buy GHRP-6 Research Peptide
Supplied as a lyophilized powder and independently verified to ≥98% purity by HPLC and MS-UPLC analysis.
Buy GHRP-6 Research Peptide
Supplied as a lyophilized powder and independently verified to ≥98% purity by HPLC and MS-UPLC analysis.
HPLC Verified
≥98% purity
Lyophilised
Powder format
Express Shipping
Cold-chain included
COA Available
Every batch
Ships Next Day
Orders confirmed before 12pm EST ship the same business day; orders after 12pm EST ship the next business day. Monday to Friday.
HPLC Verified
≥98% purity
Lyophilised
Powder format
Express Shipping
Cold-chain included
COA Available
Every batch
Ships Next Day
Orders confirmed before 12pm EST ship the same business day; orders after 12pm EST ship the next business day. Monday to Friday.
Verify Batch
Lot-level COA, Batch PP/GH6/062026
What is GHRP-6?
GHRP-6 is one of the earliest growth-hormone-releasing peptides and remains a common research tool for studying the ghrelin receptor. Like GHRP-2 it prompts the pituitary to release growth hormone, and it is also studied for its effect on appetite signaling in animal research.
- A six-amino-acid peptide widely used as a foundational growth-hormone research tool
- Studied in published research for ghrelin-receptor and growth-hormone signaling
- Investigated in animal research for its effects on appetite signaling
- Used in receptor research to map ghrelin signaling and its downstream pathways
For research use only. Not approved for human therapeutic use.
GHRP-6 (Growth Hormone-Releasing Peptide-6) is a synthetic hexapeptide and one of the earliest characterized growth hormone secretagogues in preclinical research. Defined by the amino acid sequence His-D-Trp-Ala-Trp-D-Phe-Lys-NH2, GHRP-6 has a molecular formula of C46H56N12O6 and a molecular weight of 873.01 g/mol. The incorporation of a D-tryptophan residue at position 2 is considered central to its binding affinity and selectivity at the ghrelin receptor (GHS-R1a). Produced via solid-phase peptide synthesis, GHRP-6 (CAS 87616-84-0) remains a foundational reference compound in the laboratory investigation of the growth hormone axis.
GHRP-6 features extensively in preclinical endocrinology and receptor pharmacology research. Published in vitro studies in primary cultured ovine and rat pituitary somatotroph cell lines have examined GHS-R1a receptor activation and downstream intracellular signaling cascades, characterizing GH secretion that occurs without a corresponding rise in intracellular cAMP — unlike the response to GHRP-2 or GRF — while remaining dependent on voltage-gated calcium channel activity [1]. In vivo rodent model studies have investigated the compound’s dose-related, GH-specific secretory activity across multiple species without concomitant release of LH, FSH, TSH, or prolactin [2]. Its well-characterized receptor profile and consistent use as a benchmark secretagogue have made GHRP-6 a key reference compound when evaluating second and third generation analogs across the secretagogue class.
GHRP-6 is produced to research-grade standards and independently verified by third-party HPLC and MS-UPLC analysis before dispatch. Vials are vacuum sealed and stored in a temperature controlled, monitored cold storage system. Certificates of Analysis are available to view and download directly on the product page.
Sold strictly for in vitro research purposes only. Not for human consumption. Intended for use by qualified researchers in laboratory settings only.
References
Scientific Review
Dr. Martina Rossi, PhD
Scientific Contributor and Reviewer
Reviewed for scientific accuracy, 14 June 2026
Lyophilised powder: store at -20 °C or below, away from light and moisture. Once reconstituted in an appropriate laboratory diluent (e.g. sterile water, PBS, or assay buffer), store at 2–8 °C and use within the validated period for your protocol. Do not refreeze.
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Every batch is HPLC-tested to ≥98% purity. Certificate of Analysis available on this page; MSDS available on request.