GHRP-6
GHRP-6 (Growth Hormone Releasing Peptide 6)
The first widely studied GHRP — produces strong GH release alongside significant hunger and appetite stimulation via ghrelin.
GHRP-6 is not approved by the FDA for human use. It is sold strictly for research purposes only and is not intended for human consumption, diagnosis, treatment, or prevention of any disease or condition. Purchase and use is entirely at your own risk.
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View at Ascension Peptides →What it is
GHRP-6 is a synthetic hexapeptide and one of the original GHRPs studied for its ability to stimulate GH release. It was among the earliest peptides used in both clinical research and by athletes seeking to increase GH levels.
Its mechanism involves activation of the ghrelin receptor (GHS-R1a). Because ghrelin is also the primary appetite-stimulating hormone, GHRP-6 produces a strong and often uncomfortable hunger response at typical doses — a side effect that distinguishes it from newer, more selective GHRPs like Ipamorelin.
What research shows
- Strong, reliable GH pulse induction — well-documented in human studies
- Significant ghrelin-mediated appetite stimulation — the hunger side effect is pharmacological, not psychological
- Cortisol and prolactin elevation at higher doses
- IGF-1 increase with chronic use
- Among the most extensively studied GHRPs in published literature
What remains unknown
- Whether the hunger side effect can be meaningfully mitigated without losing GH benefit
- Long-term effects on appetite regulation with chronic use
- Comparative clinical efficacy vs. newer selective GHRPs for body composition
Administration basics
Common use cases
GH optimization, appetite stimulation (sometimes used intentionally in underweight or recovery contexts), body composition.
Half-life
~2 hours.
Administration
Subcutaneous injection. Typically dosed before meals or before sleep.
Source this compound
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View at Ascension PeptidesResearch Protocols & Common Usage
Doses used in research
- Research studies have used 100–300mcg per injection, typically 3x daily
- Community protocols commonly follow similar 3x daily dosing on an empty stomach
Administration routes studied
Typical protocol duration
Most research has run 4–12 weeks. Community use typically cycles 8–12 weeks.
Common stacking protocols
- GHRP-6 + CJC-1295 — standard GHRP/GHRH combination
- GHRP-6 + Sermorelin — GHRP/GHRH pairing used in some protocols
Contraindications & combinations to avoid
- History of eating disorders — GHRP-6 causes significant hunger and appetite stimulation via ghrelin
- Active cancer or cancer history
- Cortisol-sensitive conditions — GHRP-6 elevates cortisol
- Should not be combined with other GHRPs — redundant mechanism
Dosing information reflects doses used in published research and commonly reported community protocols only. This is not a personal recommendation. These compounds are not FDA-approved for human use in the contexts described. Consult a qualified healthcare provider before starting any protocol.
Considering stacking?
See the stacking guide for common combinations with GHRP-6 and what to avoid.
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Community Reviews
Reviews reflect individual user experiences with research compounds and are not medical advice. Results vary. These compounds are not FDA approved for human use. Peptelligent does not verify reported experiences.
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