HNP-1 vs HBD-2
Head-to-head comparison of HNP-1 (Human Neutrophil Peptide 1 (Alpha-Defensin 1)) and HBD-2 (Human Beta-Defensin 2) — benefits, dosing, side effects, research data, and where to buy.
| Property | HNP-1 | HBD-2 |
|---|---|---|
| Category | Immune Support | Immune Support |
| Full Name | Human Neutrophil Peptide 1 (Alpha-Defensin 1) | Human Beta-Defensin 2 |
| Molecular Weight | 3443 Da | 4316 Da |
| Half-Life | Minutes to hours; protease-sensitive | Minutes to hours; protease-sensitive |
| Amino Acids | 30 | 41 |
| Typical Dose | Research use only; no approved human dose | Research use only; no approved human dose |
| Route | Topical / Research parenteral | Topical / Intranasal / Research parenteral |
| Purity | ≥98% | ≥98% |
| Studies Count | 610 | 420 |
| Research Status | Pre-clinical | Pre-clinical |
HNP-1 Benefits
- ✓neutrophil-derived antimicrobial defense
- ✓broad pathogen killing
- ✓immune cell signaling
- ✓mucosal protection
HBD-2 Benefits
- ✓broad-spectrum antimicrobial activity
- ✓epithelial barrier defense
- ✓innate immune modulation
- ✓anti-biofilm potential
HNP-1 Dosing
0.1–10 µM in vitro|1–5 mg/kg in animal models|No established human dose
HBD-2 Dosing
0.1–10 µM in vitro|1–5 mg/kg in animal models|No established human dose
HNP-1 Side Effects
- ⚠membrane toxicity at high concentrations
- ⚠short in vivo stability
- ⚠potential inflammation amplification
HBD-2 Side Effects
- ⚠local irritation at high concentrations
- ⚠proteolytic instability
- ⚠potential pro-inflammatory signaling
Research Overview
HNP-1
HNP-1 has been studied as a key component of neutrophil-mediated host defense against bacteria, fungi, and some enveloped viruses. Literature also reports immunomodulatory effects, including impacts on chemotaxis, cytokine release, and barrier defense.
HBD-2
Human beta-defensin 2 has been studied extensively for direct microbicidal effects and for its role in shaping mucosal immunity. Preclinical work shows activity against Gram-negative and Gram-positive organisms, with additional effects on leukocyte recruitment and wound defense.
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