Muscle & RecoveryModerate research evidence

GHRP-6

GHRP-6 (Growth Hormone Releasing Peptide-6) is a synthetic hexapeptide that stimulates growth hormone secretion via the ghrelin receptor. It is one of the original GH secretagogue peptides and is notable for its significant appetite-stimulating effect.

Quick facts

Half-life
~15–60 minutes
Administration
Subcutaneous injection
Primary use
Growth hormone release, appetite stimulation

How it works

GHRP-6 binds to the GHS-R1a (ghrelin) receptor in the pituitary gland and hypothalamus, triggering a strong pulse of growth hormone release. It also stimulates hunger through ghrelin pathway activation — a key distinction from the more selective Ipamorelin.

Reported benefits

  • Strong growth hormone pulse stimulation
  • Increased muscle mass and reduced body fat over time
  • Significant appetite stimulation — useful in a caloric surplus
  • Improved recovery and sleep quality

Typical dosing protocol

Dosing

100–300 mcg per injection, 2–3x daily on an empty stomach

Cycle length

8–12 weeks

Dosing information is for educational reference only. Individual needs vary. Always consult a healthcare professional.

Safety & considerations

May cause significant hunger, water retention, and elevated cortisol and prolactin — unlike Ipamorelin. Not approved for human use in the UK. Consult a healthcare professional before use.

Important: All content is for informational purposes only. Not medical advice. Always consult a qualified healthcare professional before starting any peptide protocol.