Collagen Peptides vs MGF (Mechano Growth Factor)
Side-by-side comparison of key properties, dosing, and research.
Skin & CosmeticRecovery & Repair
Collagen PeptidesAnabolic & IGF
MGF (Mechano Growth Factor)- Summary
- 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.
- 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
- N/A — food-derived; absorbed peptides circulate for hours, depot accumulation in tissues
- Native MGF: minutes. PEG-MGF: ~3 days
- Admin Route
- Oral
- SubQ, IM
- Research
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- Typical Dose
- 10–15 g
- 200–400 mcg
- Frequency
- Once daily
- 1–2 times per week
- Key Benefits
- 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
- 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
- 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)
- Muscle soreness (satellite cell activation)
- Injection site irritation
- Hypoglycemia risk (modest, less than IGF-1 LR3)
- Stacks With
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