New — Free Peptide Starter Guide (2026): 13 chapters, 34 cited studies

Get it free
ToolsCompareTripeptide-29 vs BPC-157

Tripeptide-29 vs BPC-157

Side-by-side comparison of key properties, dosing, and research.

Skin & CosmeticAnti-Aging & Longevity
Tripeptide-29
Recovery & Repair
BPC-157
Summary
Tripeptide-29 is a pro-collagen cosmetic peptide composed of proline, hydroxyproline, and glycine — the core repeating unit of collagen. Applied topically, it signals dermal fibroblasts that collagen degradation has occurred, triggering compensatory new collagen synthesis.
BPC-157 is a synthetic pentadecapeptide derived from a protective protein found in the stomach. It is one of the most extensively researched healing peptides, known for accelerating tissue repair, reducing inflammation, and protecting the gastrointestinal tract.
Half-Life
Not applicable (topical)
4–6 hours
Admin Route
Topical
SubQ, IM, Oral
Research
Typical Dose
0.01-0.1% in formulation
200–500 mcg
Frequency
Once or twice daily
Once daily
Key Benefits
  • Stimulates fibroblast collagen synthesis via damage-signal mechanism
  • Reduces fine lines and improves skin smoothness
  • Supports dermal matrix integrity
  • Naturally bioidentical to collagen fragment sequences
  • Well-tolerated in all skin types
  • Synergistic with copper peptides and retinoids
  • Accelerates wound healing and tissue repair
  • Reduces inflammation throughout the body
  • Protects and heals the gastrointestinal tract
  • Supports tendon and ligament healing
  • Promotes bone and joint health
  • May protect organs from toxins and injury
  • Supports gut-brain axis function
  • Counteracts NSAID-induced gut damage
Side Effects
  • Excellent tolerability profile
  • No documented significant adverse effects at cosmetic concentrations
  • Rare sensitivity reactions in individuals with peptide allergies
  • Injection site discomfort
  • Nausea (rare)
  • Headache (rare)
  • Dizziness (rare)
Stacks With