HBD-3 vs Indolicidin
Head-to-head comparison of HBD-3 (Human Beta-Defensin 3) and Indolicidin (Indolicidin (Bovine Neutrophil Antimicrobial Peptide)) — benefits, dosing, side effects, research data, and where to buy.
Research Score
| Property | HBD-3 | Indolicidin |
|---|---|---|
| Category | Immune Support | Immune Support |
| Full Name | Human Beta-Defensin 3 | Indolicidin (Bovine Neutrophil Antimicrobial Peptide) |
| Molecular Weight | 5158 Da | 2111 Da |
| Half-Life | Minutes to hours; protease-sensitive | Minutes to hours; protease-sensitive |
| Amino Acids | 45 | 13 |
| Typical Dose | Research use only; no approved human dose | Research use only; no approved human dose |
| Route | Topical / Intranasal / Research parenteral | Topical / Research parenteral |
| Purity | ≥98% | ≥98% |
| Studies Count | 380 | 240 |
| Research Status | Pre-clinical | Pre-clinical |
HBD-3 Benefits
- ✓strong antimicrobial activity
- ✓skin and mucosal defense
- ✓innate immune signaling modulation
- ✓wound-healing support
Indolicidin Benefits
- ✓broad-spectrum bactericidal activity
- ✓anti-biofilm effects
- ✓membrane disruption
- ✓innate immune support
HBD-3 Dosing
0.1–10 µM in vitro|1–5 mg/kg in animal models|No established human dose
Indolicidin Dosing
0.1–10 µM in vitro|1–10 mg/kg in animal models|No established human dose
HBD-3 Side Effects
- ⚠cell toxicity at high concentrations
- ⚠rapid proteolysis
- ⚠inflammatory activation in some contexts
Indolicidin Side Effects
- ⚠cell membrane toxicity at high doses
- ⚠rapid degradation in vivo
- ⚠limited systemic tolerability
Research Overview
HBD-3
Human beta-defensin 3 has been examined in numerous in vitro and animal studies for antimicrobial and immunomodulatory activity. Research suggests it can help defend barrier tissues while influencing cytokine networks, chemotaxis, and epithelial repair.
Indolicidin
Indolicidin has been extensively studied as a prototype antimicrobial peptide with activity against bacteria, fungi, and some viruses. Research has also explored its use in anti-biofilm strategies and as a template for next-generation synthetic antimicrobial peptides.
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