Home›Research›Compare›Ghrelin vs PEG-MGF
Peptide ComparisonGhrelin vs PEG-MGF
Both are GH / IGF Axis peptides.
Ghrelin
acyl ghrelin
Half-life: ~24 min (initial), ~146 min (terminal)
3 providers listed
PEG-MGF
Pegylated Mechano Growth Factor
Half-life: Several days (vs. minutes for native MGF)
11 providers listed
Ghrelin has published research citations on file; PEG-MGF does not yet — the main evidence gap between them.
Ghrelin
Half-life
~24 min (initial), ~146 min (terminal)
PEG-MGF
Half-life
Several days (vs. minutes for native MGF)
| Your goal | Better option |
|---|---|
| Has published research citations | Ghrelin |
| More provider options (3 vs 11) | PEG-MGF |
Research summary only — not medical advice. Consult a qualified provider before making any decisions.
Ghrelin
PEG-MGF
Ghrelin
A Secondary, Subgroup Analysis of Alcohol Cue-Exposure Craving in Response to Pharmacological Inhibition of t…
Pilot clinical trial of macimorelin to assess safety and efficacy in patients with cancer cachexia
Safety, tolerability, pharmacokinetics, and pharmacodynamics of macimorelin in healthy adults: Results of a s…
Constant intravenous ghrelin infusion in healthy young men: clinical pharmacokinetics and metabolic effects
+1 more
PEG-MGF
No citations on file.
About Ghrelin
Must be acylated at Ser3 (by GOAT enzyme) for GHSR-1a binding. Receptor activation in the pituitary stimulates GH release; hypothalamic action via NPY/AgRP neurons increases appetite and reduces energy expenditure.
About PEG-MGF
Pegylated form of MGF; activates muscle stem cells (satellite cells) to repair and regenerate muscle tissue after damage
Information below reflects published research data only — not medical advice. Consult a qualified provider before use.
Ghrelin
Under clinical review
Being verified by our medical team before we display contraindications for this peptide.
PEG-MGF
Under clinical review
Being verified by our medical team before we display contraindications for this peptide.
Ghrelin
Not enough vendor pricing yet.
PEG-MGF
Where to source these peptides
Ghrelin
3 listed
Browse directory →
Providers offeringPEG-MGF
11 listed
Browse directory →
PeptideBase lists providers for educational research purposes only. Always consult a qualified healthcare professional before obtaining or using any peptide.
More GH / IGF Axis Comparisons
Browse all peptides →Educational research tools — not medical advice.
Cite this page
Data last updated August 26, 2026
Free to reference and republish with attribution to PeptideBase. Choose a format:
PeptideBase. (2026). Ghrelin vs PEG-MGF — Per-mg Price Comparison. Retrieved September 11, 2026, from https://peptidebase.io/peptides/compare/ghrelin/peg-mgf