HD5 vs Indolicidin
Head-to-head comparison of HD5 (Human Alpha-Defensin 5) and Indolicidin (Indolicidin (Bovine Neutrophil Antimicrobial Peptide)) — benefits, dosing, side effects, research data, and where to buy.
Research Score
| Property | HD5 | Indolicidin |
|---|---|---|
| Category | Immune Support | Immune Support |
| Full Name | Human Alpha-Defensin 5 | Indolicidin (Bovine Neutrophil Antimicrobial Peptide) |
| Molecular Weight | 3708 Da | 2111 Da |
| Half-Life | Minutes to hours; protease-sensitive | Minutes to hours; protease-sensitive |
| Amino Acids | 32 | 13 |
| Typical Dose | Research use only; no approved human dose | Research use only; no approved human dose |
| Route | Oral-local gut / Research parenteral | Topical / Research parenteral |
| Purity | ≥98% | ≥98% |
| Studies Count | 260 | 240 |
| Research Status | Pre-clinical | Pre-clinical |
HD5 Benefits
- ✓gut mucosal defense
- ✓antimicrobial activity
- ✓microbiome balance support
- ✓barrier integrity support
Indolicidin Benefits
- ✓broad-spectrum bactericidal activity
- ✓anti-biofilm effects
- ✓membrane disruption
- ✓innate immune support
HD5 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
HD5 Side Effects
- ⚠protease sensitivity
- ⚠potential epithelial irritation at high concentrations
- ⚠unknown systemic safety
Indolicidin Side Effects
- ⚠cell membrane toxicity at high doses
- ⚠rapid degradation in vivo
- ⚠limited systemic tolerability
Research Overview
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.
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.
Ready to buy?
Find both peptides from our verified, lab-tested vendors with purity certificates and third-party testing.