MGF (Mechano Growth Factor) vs Alpha-GPC
Side-by-side comparison of key properties, dosing, and research.
Anabolic & IGF
MGF (Mechano Growth Factor)Cognitive Enhancement
Alpha-GPC- Summary
- 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.
- Alpha-GPC is the most bioavailable form of choline, readily crossing the blood-brain barrier to rapidly increase acetylcholine levels. It enhances cognitive performance, supports GH secretion, and is used as an essential complement to many nootropic peptides (especially those that increase acetylcholine demand like Noopept and Dihexa).
- Half-Life
- Native MGF: minutes. PEG-MGF: ~3 days
- ~4–6 hours
- Admin Route
- SubQ, IM
- Oral, SubQ
- Research
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- Typical Dose
- 200–400 mcg
- 300–600 mg
- Frequency
- 1–2 times per week
- 1–2x daily
- Key Benefits
- 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
- Rapidly raises brain acetylcholine levels
- Enhances memory formation and recall
- Prevents headaches from nootropic peptides (choline donor)
- Stimulates growth hormone secretion (modest)
- Improves attention and processing speed
- Neuroprotective in Alzheimer's and cognitive decline
- Approved in Europe for Alzheimer's therapy
- Enhances power output in athletes (pre-workout)
- Side Effects
- Muscle soreness (satellite cell activation)
- Injection site irritation
- Hypoglycemia risk (modest, less than IGF-1 LR3)
- Headache (paradoxically, from excess acetylcholine at very high doses)
- Nausea at doses > 1200 mg
- Dizziness
- Fatigue at high doses
- +1 more
- Stacks With
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