BPC-157 vs LL-37
Side-by-side comparison of key properties, dosing, and research.
- Summary
- 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.
- LL-37 is the only known human cathelicidin antimicrobial peptide. It kills bacteria, fungi, and viruses by disrupting their membranes, while simultaneously modulating immune responses. Used for antimicrobial protection, immune priming, and wound healing.
- Half-Life
- 4–6 hours
- Very short (~1–2 hours) in plasma due to protease degradation; topical use bypasses systemic clearance
- Admin Route
- SubQ, IM, Oral
- SubQ, Topical, Intranasal
- Research
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- Typical Dose
- 200–500 mcg
- 100–300 mcg
- Frequency
- Once daily
- 2–3x per week
- Key Benefits
- 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
- Broad-spectrum antimicrobial (bacteria, fungi, viruses)
- Promotes wound healing and angiogenesis
- Immune system modulation — enhances innate immunity
- Reduces LPS-mediated endotoxemia
- Anti-biofilm activity against resistant organisms
- Promotes tissue regeneration and keratinocyte migration
- May protect against sepsis
- Side Effects
- Injection site discomfort
- Nausea (rare)
- Headache (rare)
- Dizziness (rare)
- Injection site redness and irritation
- Mild inflammatory response at injection site
- Potential pro-inflammatory at high doses
- Rare: fever or flu-like symptoms at initiation
- Stacks With
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