MGF (Mechano Growth Factor) vs Collagen Peptides
Side-by-side comparison of key properties, dosing, and research.
Anabolic & IGF
MGF (Mechano Growth Factor)Skin & CosmeticRecovery & Repair
Collagen Peptides- 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.
- Collagen peptides are short-chain amino acid sequences produced by enzymatic hydrolysis of whole collagen (typically bovine or marine). They serve as bioactive signals that stimulate fibroblasts and chondrocytes to produce new collagen, elastin, and cartilage matrix, supporting skin, joint, bone, and gut health.
- Half-Life
- Native MGF: minutes. PEG-MGF: ~3 days
- N/A — food-derived; absorbed peptides circulate for hours, depot accumulation in tissues
- Admin Route
- SubQ, IM
- Oral
- Research
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- Typical Dose
- 200–400 mcg
- 10–15 g
- Frequency
- 1–2 times per week
- Once 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
- Stimulates skin collagen and elastin production
- Reduces wrinkle depth and improves skin hydration
- Supports joint cartilage regeneration
- Reduces joint pain in osteoarthritis
- Promotes bone density (stimulates osteoblasts)
- Improves gut barrier integrity (leaky gut)
- Supports hair and nail growth
- Excellent amino acid profile for muscle recovery
- Side Effects
- Muscle soreness (satellite cell activation)
- Injection site irritation
- Hypoglycemia risk (modest, less than IGF-1 LR3)
- Excellent safety profile as food-derived protein
- Rare: bloating or GI discomfort at high doses
- Rare: allergic reaction (bovine or fish allergy)
- Mild bad taste (some forms)
- Stacks With
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