Exenatide vs MGF (Mechano Growth Factor)
Side-by-side comparison of key properties, dosing, and research.
GLP-1 / Weight Loss AgonistsCognitive Enhancement
ExenatideAnabolic & IGF
MGF (Mechano Growth Factor)- Summary
- Exenatide is a GLP-1 receptor agonist derived from the Gila monster lizard peptide exendin-4, with 53% homology to human GLP-1 and natural resistance to DPP-4 degradation. Available as twice-daily (Byetta) or once-weekly (Bydureon) formulation, it is also being studied for Parkinson's disease neuroprotection.
- MGF (Mechano Growth Factor) is a splice variant of IGF-1 that is locally produced in muscle tissue in response to mechanical damage from exercise. It activates muscle satellite cells (stem cells) to proliferate and repair damaged fibers, making it specifically targeted at exercise-induced hypertrophy.
- Half-Life
- ~2.4 hours (Byetta/twice-daily); Bydureon BCISE: weekly via microsphere release
- Native MGF: minutes. PEG-MGF: ~3 days
- Admin Route
- SubQ
- SubQ, IM
- Research
- —
- —
- Typical Dose
- 5 mcg, titrate to 10 mcg
- 200–400 mcg
- Frequency
- Twice daily
- 1–2 times per week
- Key Benefits
- Blood glucose control in type 2 diabetes
- Weight loss (average 2–3 kg in clinical trials)
- Once-weekly extended-release formulation available
- Reduces appetite and food intake
- Possible neuroprotective in Parkinson's disease (Phase II trials)
- Reduces systemic inflammation
- May protect pancreatic beta cells
- Cardiovascular neutral or potentially protective
- Activates muscle satellite cells for repair and growth
- Accelerates recovery from muscle damage
- Synergistic with IGF-1 LR3 (different mechanisms)
- Promotes muscle hypertrophy specifically at exercised muscles
- Faster recovery between training sessions
- Potential for injury repair in connective tissue
- Side Effects
- Nausea (most common, especially initially)
- Vomiting
- Diarrhea
- Headache
- +4 more
- Muscle soreness (satellite cell activation)
- Injection site irritation
- Hypoglycemia risk (modest, less than IGF-1 LR3)
- Stacks With
- —
- —