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hormone

GHRP-6

FDA: research-only

GHRP-6 is a growth hormone releasing peptide that stimulates natural GH release through ghrelin receptor activation. It is particularly known for its strong appetite-stimulating effects, making it useful in muscle-wasting or underweight scenarios, and also supports blood vessel repair and nitric oxide synthase. Stimulates natural GH release through ghrelin receptor activation. Supports blood vessel repair and enhances nitric oxide synthase activity. Particularly strong appetite-stimulating effects compared to other GHRPs. Similar mechanism to GHRP-2 but with more pronounced hunger effects. - Growth hormone stimulation - Enhanced appetite (useful for underweight/muscle-wasting) - Recovery support - Blood vessel repair and vascular performance -

This content is for educational and research purposes only. VialBase does not provide medical advice. Consult a healthcare professional before using any peptide.

Molecular weight —
Half-life —
CAS number —
Route —
02

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5mg

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Stocks this compound Third-party tested Public COAs
Stocks this compound Third-party tested Public COAs

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What bloodwork do I need?

Reference ranges are general guidelines. Consult your physician for interpretation.

PRE-CYCLE
  • IGF-1
  • Fasting Glucose
  • Fasting Insulin
  • Cortisol (AM)
  • Prolactin
  • CMP
  • CBC
DURING CYCLE
  • IGF-1
  • Cortisol (AM)
  • Prolactin
  • Fasting Glucose
POST-CYCLE
  • IGF-1
  • Cortisol (AM)
  • Prolactin
  • Fasting Glucose
Safety & Regulatory Status
FDA STATUS research-only

Regulatory status for GHRP-6 may change. Verify current status with your jurisdiction before use. This is not legal or medical advice.

Frequently Asked Questions

What is GHRP-6?
GHRP-6 (growth hormone releasing peptide 6) is a synthetic peptide secretagogue that stimulates the body's own growth hormone release by activating the ghrelin receptor. Among the GHRPs it is most known for strong appetite stimulation, which has drawn research interest for muscle-wasting or underweight scenarios. It is a research-only compound and is not FDA-approved.
How does GHRP-6 work?
GHRP-6 mimics ghrelin and binds the growth hormone secretagogue receptor (GHS-R1a) on the pituitary and hypothalamus, prompting a pulse of endogenous growth hormone. Activating the ghrelin pathway also strongly stimulates appetite, more so than other GHRPs. It is mechanistically similar to GHRP-2 but with more pronounced hunger effects, and is often paired with a GHRH analog such as CJC-1295.
How is GHRP-6 dosed?
Commonly cited research protocols use 100–300 mcg subcutaneously, two to three times daily, typically before meals; lower vascular-support protocols use about 100 mcg once or twice daily. It is administered by subcutaneous injection and often combined with a GHRH analog for synergistic GH release. These figures reflect research protocols, not medical advice — consult a clinician.
What are the benefits and evidence for GHRP-6?
The evidence tier is mechanistic and preclinical rather than large human trials. As a ghrelin-receptor agonist, GHRP-6 is studied for stimulating endogenous growth hormone, increasing appetite (useful in underweight or muscle-wasting states), supporting recovery, and aiding blood-vessel repair and nitric-oxide signaling. Human outcome data are limited, so these are research-context benefits, not proven clinical results.
What are the side effects of GHRP-6?
Reported effects include water retention and a pronounced increase in hunger that is stronger than with other GHRPs. With long-term use, GHRP-6 can elevate cortisol and prolactin, so monitoring is advised for chronic use. As a growth-hormone secretagogue, its overall effect depends on pituitary function. Discuss risks and bloodwork with a clinician.
How does GHRP-6 compare to GHRP-2 and Ipamorelin?
All three are ghrelin-receptor secretagogues that raise endogenous growth hormone. GHRP-6 is the strongest appetite stimulant of the group. GHRP-2 also raises hunger and can elevate cortisol and prolactin. Ipamorelin is the most selective, with minimal effect on cortisol, prolactin, or appetite. Choice depends on whether appetite stimulation is wanted or avoided.
Is GHRP-6 FDA-approved?
No. GHRP-6 is a research-only compound and is not FDA-approved for human use. It is available through research-chemical suppliers and is banned in competitive sports. Because it is unapproved, product purity and dosing accuracy are not guaranteed, and it should not be treated as a clinician-validated therapy.