Collagen Peptides vs GHK
Side-by-side comparison of key properties, dosing, and research.
Skin & CosmeticRecovery & Repair
Collagen PeptidesSkin & CosmeticAnti-Aging & Longevity
GHK- 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.
- GHK is the natural tripeptide (Gly-His-Lys) released from human albumin that activates tissue remodeling, collagen synthesis, and anti-aging gene expression. The copper-free form is the biological signaling molecule; it chelates copper in tissue to form GHK-Cu but also has independent biological activity.
- Half-Life
- N/A — food-derived; absorbed peptides circulate for hours, depot accumulation in tissues
- Extremely short as free peptide; tissue binding extends local effects
- Admin Route
- Oral
- SubQ, Topical, Oral
- Research
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- Typical Dose
- 10–15 g
- 100–500 mcg
- Frequency
- Once daily
- Daily or 5x 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
- Stimulates collagen and extracellular matrix synthesis
- Activates tissue repair gene expression programs
- Anti-aging: reverses 57% of age-related gene changes
- Antioxidant and anti-inflammatory
- Wound healing and skin barrier repair
- Improves skin laxity, texture, and radiance
- Neuroprotective (stimulates NGF, BDNF)
- Anti-fibrotic in liver and lung models
- 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)
- Excellent safety profile (naturally occurring peptide)
- Rare: mild injection site reaction (SC)
- No significant adverse effects identified in research
- Stacks With
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