Indolicidin vs HD5
Head-to-head comparison of Indolicidin (Indolicidin (Bovine Neutrophil Antimicrobial Peptide)) and HD5 (Human Alpha-Defensin 5) — benefits, dosing, side effects, research data, and where to buy.
Research Score
| Property | Indolicidin | HD5 |
|---|---|---|
| Category | Immune Support | Immune Support |
| Full Name | Indolicidin (Bovine Neutrophil Antimicrobial Peptide) | Human Alpha-Defensin 5 |
| Molecular Weight | 2111 Da | 3708 Da |
| Half-Life | Minutes to hours; protease-sensitive | Minutes to hours; protease-sensitive |
| Amino Acids | 13 | 32 |
| Typical Dose | Research use only; no approved human dose | Research use only; no approved human dose |
| Route | Topical / Research parenteral | Oral-local gut / Research parenteral |
| Purity | ≥98% | ≥98% |
| Studies Count | 240 | 260 |
| Research Status | Pre-clinical | Pre-clinical |
Indolicidin Benefits
- ✓broad-spectrum bactericidal activity
- ✓anti-biofilm effects
- ✓membrane disruption
- ✓innate immune support
HD5 Benefits
- ✓gut mucosal defense
- ✓antimicrobial activity
- ✓microbiome balance support
- ✓barrier integrity support
Indolicidin Dosing
0.1–10 µM in vitro|1–10 mg/kg in animal models|No established human dose
HD5 Dosing
0.1–10 µM in vitro|1–5 mg/kg in animal models|No established human dose
Indolicidin Side Effects
- ⚠cell membrane toxicity at high doses
- ⚠rapid degradation in vivo
- ⚠limited systemic tolerability
HD5 Side Effects
- ⚠protease sensitivity
- ⚠potential epithelial irritation at high concentrations
- ⚠unknown systemic safety
Research Overview
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.
HD5
HD5 has been widely studied in intestinal innate immunity, particularly for its role in defending crypts against bacterial invasion. Preclinical literature supports activity against multiple microbes and links altered HD5 biology with gut barrier dysfunction.
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