His-D-Trp-Ala-Trp-D-Phe-Lys-NH2
GH secretagogue with potent appetite stimulation — bulking cycles.
FDA
Research Only
WADA
Banned
HALF-LIFE
~1–2 hours
ROUTE
SubQ injection
SCHEDULE
3× daily
In Plain English
GH secretagogue with potent appetite stimulation — bulking cycles.
Status & Legality
NATTY?
Not NattyWADA banned substance. Tested athletes will fail.
FDA
Research OnlyFor research purposes only. Not FDA approved.
WADA
BannedOn WADA prohibited list. Use disqualifies in tested sports.
COMPOUNDING
Not from pharmaciesNot available from licensed compounding pharmacies.
PRESCRIBED
Not prescribedNot prescribed in conventional medicine.
ROUTE
SubQ injectionAdministration via subq injection.
GH stimulation
Appetite stimulation
Muscle building
Anti-inflammatory
GHRP-6 is a hexapeptide GH secretagogue that produces strong GH pulses and dramatically increases appetite through ghrelin receptor activation. The appetite stimulation makes it particularly popular during bulking phases. It also has direct anti-inflammatory and GI protective effects independent of GH.
Intense hunger/appetite
Water retention
Cortisol elevation
Prolactin increase
Fatigue
Headache
Not planning meals around the appetite spike — the hunger hits hard 20–30 min post-injection; have food ready
Using GHRP-6 during a cut or caloric deficit — the intense appetite stimulation makes caloric restriction nearly impossible to manage
Dosing more than 3× daily — receptor saturation occurs without additional GH benefit at higher frequencies
Insulin — GH elevation affects glucose; monitor during combined use
GLP-1 agonists (semaglutide) — directly antagonistic on appetite signals; do not combine when weight loss is the goal
Antidepressants — ghrelin receptor activation may interact with mood pathways; monitor
GHRP-6 is a bulking peptide, full stop. The appetite stimulation is predictable, significant, and not controllable. Plan your largest meal right after the injection window. If you're trying to lose weight or maintain caloric control, switch to Ipamorelin — the GH pulse is comparable without the hunger drive.
Stats
Sources & Studies
Bowers CY., Front Neuroendocrinol, 1998