In short: GHRP-6 (Growth Hormone Releasing Peptide-6) is a synthetic hexapeptide growth hormone secretagogue and the founding member of the GHRP family, studied in pre-clinical models for its action at the ghrelin receptor (GHS-R1a). It is supplied strictly for in-vitro laboratory research and is not approved for human consumption. Research buyers should confirm any material against three criteria before purchase: ≥99% purity by HPLC, identity confirmed by mass spectrometry, and clear batch numbering tied to a certificate of analysis.
What is GHRP-6?
GHRP-6 is a synthetic hexapeptide with the sequence His-D-Trp-Ala-Trp-D-Phe-Lys-NH₂ and a molecular weight of roughly 873 g/mol. Its two D-amino acids (D-Trp and D-Phe) confer resistance to enzymatic degradation. Characterised in 1984 from work by Cyril Bowers, it was the first synthetic peptide shown to release growth hormone dose-dependently through a mechanism distinct from GHRH, and it is the parent compound from which GHRP-2, hexarelin and ipamorelin were derived.
What does the research investigate?
Pre-clinical and in-vitro research into GHRP-6 has centred on its binding to the growth hormone secretagogue receptor (GHS-R1a) and the GH-release signalling this triggers in pituitary cell and animal models. Laboratory work has also explored GHRP-6 in appetite and food-intake signalling, and broader cytoprotective and tissue-repair questions in experimental models. These observations derive from cell cultures and animal studies only and do not establish safety or efficacy in humans. Always read the primary sources directly.
Purity and quality: what research buyers should check
- ≥99% purity by HPLC — confirm via the batch certificate of analysis (COA).
- Identity confirmed by mass spectrometry against the expected peptide mass.
- Batch numbering that ties each vial to its COA for traceability.
Vexar Lab supplies GHRP-6 as a pack of 10 vials, ≥99% HPLC-verified, batch-numbered, with mass-spec confirmation.
Handling and storage
Standard lyophilised-peptide practice applies. Store sealed vials of lyophilised powder at -20°C, away from light and moisture. After reconstitution with a suitable solvent, refrigerate and use within a short working window, avoiding repeated freeze-thaw cycles that can degrade peptide integrity. Allow vials to reach room temperature before opening to limit condensation.
Wholesale supply
Vexar Lab supplies research peptides in packs of 10 vials, £300 minimum order, with bulk pricing on volume, £45 flat worldwide shipping, and optional custom labelling for resellers.
Frequently asked questions
Is GHRP-6 approved for human use?
No. GHRP-6 is supplied strictly for in-vitro laboratory research and is not approved for human consumption or any therapeutic use.
How does GHRP-6 differ from GHRP-2?
Both are GHS-R1a secretagogues from the same family; in pre-clinical comparisons they differ in potency and side signalling, but such differences are investigational and model-dependent.
How should purity be verified?
Request the batch certificate of analysis showing ≥99% purity by HPLC and a mass-spectrometry identity confirmation tied to the vial’s batch number.
This guide is provided for informational purposes only. GHRP-6 is sold strictly as a research-only chemical for in-vitro laboratory use and is not for human or veterinary consumption, diagnosis, or treatment.
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