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Protocol Reference
Human trial data

GHRP-6 protocol

GHRP-6 (growth hormone releasing peptide 6). Dosing on this page comes from a published human trial or an approved product label, cited below.

Category
Growth Hormone Axis
Common vials
Not stocked by our featured supplier
Half-life
~15–20 minutes
Route in the literature
Intravenous in study work
Evidence level
Human trial data

How GHRP-6 works

The earliest of the growth-hormone-releasing hexapeptides and the compound that led to the discovery of the ghrelin receptor. It is a strong GH releaser and a strong appetite stimulant — the hunger is a pronounced, well-documented effect rather than an incidental one.

GHRP-6 dosing schedule

GHRP-6 has been used in human GH-secretion research since the 1980s, typically as a single provocative intravenous dose to study pituitary response. There is no approved therapeutic indication and no established treatment course.

PhaseAmountFrequencyNotes
Research provocative dose1 mcg/kgSingle intravenous doseThe amount commonly used in GH-secretion research.

Study length: Single administration in the provocative-test setting.

Source for this schedule: GHRP-6 human growth hormone secretion studies. This reproduces what was administered in that work. It is reference information about a study, not a recommendation, and the trial population, monitoring and endpoints are part of what made it a protocol.

Reconstitution and measurement

This part is arithmetic and does not depend on the evidence level. Concentration is vial size divided by the bacteriostatic water you add. Draw volume is your target amount divided by that concentration. Units are draw volume times 100, because a U-100 syringe reads 100 units per millilitre. Common vials for GHRP-6: Not stocked by our featured supplier.

Open the GHRP-6 calculator → Unit converter

Storage and stability

Dry powder
Cold, dark and dry. Lyophilized peptide is the stable form — keep it that way until you intend to use it.
After reconstitution
Refrigerate at 2–8 °C, protect from light, and plan around a limited window. Do not freeze a reconstituted vial — freeze-thaw damages peptides.
Mixing
Run bacteriostatic water down the inside wall of the vial rather than onto the powder, then swirl. Never shake.
Inspect before use
A clear solution is expected. Cloudiness or particles mean discard, not use.

Full storage guide → · Cloudy solution?

Reported effects

  • Marked appetite stimulation is the most consistently reported effect and the main practical difference from ipamorelin.
  • Raises cortisol and prolactin more than the more selective secretagogues.
  • No approved therapeutic indication.

Sourcing GHRP-6

Our featured supplier does not stock this compound, and we are not going to point you at a vendor we have not looked at. Use the COA checklist on whoever you do buy from, and check the batch number on the certificate against the vial you receive.

COA checklist → How we vet suppliers

Sources and further reading

For laboratory research use only. This page documents what the published literature reports about GHRP-6. It is not a recommendation, not a treatment plan, and not medical advice. Compounds referenced are sold strictly as research chemicals and are not for human or veterinary use. Some supplier links are affiliate links and may earn us a commission. This never affects tier placement or review conclusions.
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