Overview
What it is.
GHRP-6 was among the first growth hormone secretagogues developed and is studied for a pronounced appetite-related effect alongside GH release, making it a frequent reference compound in appetite-signaling research.
Research Areas
- Studied for its potential role in growth hormone release
- Studied for its potential role in appetite-related research
- Studied for its interaction with cortisol and prolactin pathways
Batch & Testing
Proof, not promises.
COA ships with every order
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Research Deep-Dive
How it works.
Research Deep-Dive
How it works.
GHRP-6 was the original growth hormone secretagogue, developed by endocrinologist Cyril Bowers in the early 1980s — years before the discovery of ghrelin, the natural hormone that turned out to act on the same receptor GHRP-6 targets. It's the parent compound from which GHRP-2, hexarelin, and ipamorelin were all later derived.
GHRP-6 activates the ghrelin receptor (GHS-R1a) in the hypothalamus and pituitary, which both triggers GH release and directly stimulates the same hunger-signaling neurons ghrelin itself acts on — producing the strongest appetite-stimulating effect of any compound in its class, alongside GH release.
Use Cases Explored
- Studied for its potential role in growth hormone release via the ghrelin receptor
- Studied for its potential role in appetite stimulation, historically its most distinctive effect
- Studied for its interaction with cortisol and prolactin pathways
The Evidence
Foundational ghrelin-receptor pharmacology (1980s-1990s)
Bowers' original binding studies in rat and porcine pituitary/hypothalamic tissue characterized the GHRP binding site years before ghrelin was identified as its natural ligand in 1999 — historically important basic-science work, not a therapeutic evidence base.
Documented, pronounced hormonal side effects
Beyond GH, GHRP-6 reliably raises cortisol and prolactin at higher doses and produces intense hunger within minutes of dosing — effects that are well-replicated but are exactly what led licensed programs to favor more selective compounds like ipamorelin instead.
No FDA approval; not part of a completed drug development program
GHRP-6 has never advanced through formal drug-approval trials for any indication and is banned by WADA under category S2 alongside other GH secretagogues.
Specifications
The essentials.
Specifications
The essentials.
- Form
- Lyophilized powder
- Storage
- Store in a cool, dry place. Refrigerate at 2–8°C after reconstitution
- Shelf life
- 24 months lyophilized; 4–6 weeks refrigerated after reconstitution
- Solubility
- Reconstitute with bacteriostatic water
- Vial capacity
- 3 ml glass vial
Questions
GHRP-6 FAQ
Questions
GHRP-6 FAQ
What is GHRP-6 studied for?+
GHRP-6 is studied as one of the original growth hormone secretagogues, examined for GH release alongside a pronounced appetite-stimulating effect that makes it a frequent reference compound in appetite-signaling research.
Why does GHRP-6 draw research interest in appetite-signaling studies specifically?+
Its ghrelin-receptor activity produces a comparatively strong appetite-related effect alongside GH release, which is why it's often used as a reference point when researchers compare secretagogues for their non-GH effects.
How should GHRP-6 be handled and stored?+
It ships as a lyophilized powder. Reconstitute with bacteriostatic water and refrigerate at 2–8°C after mixing — good for roughly 4–6 weeks refrigerated, or up to 24 months unreconstituted in a cool, dry place.
What testing does this batch undergo?+
Every batch is HPLC tested for purity and identity, plus sterility and endotoxin screening, before release. The Certificate of Analysis for that lot ships with your order.
Growth Hormone
GHRP-6
One of the original growth-hormone-releasing peptides, studied for GH and appetite effects.
Size
Multi-vial pricing
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All products sold by One Tap Peptides are intended for laboratory research use only. Not for human consumption. Not intended for animal use. Not intended for diagnostic or therapeutic purposes.
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