HBD-3 vs Pidotimod
Head-to-head comparison of HBD-3 (Human Beta-Defensin 3) and Pidotimod (3-L-Pyroglutamyl-L-Thiazolidine-4-Carboxylic Acid) — benefits, dosing, side effects, research data, and where to buy.
| Property | HBD-3 | Pidotimod |
|---|---|---|
| Category | Immune Support | Immune Support |
| Full Name | Human Beta-Defensin 3 | 3-L-Pyroglutamyl-L-Thiazolidine-4-Carboxylic Acid |
| Molecular Weight | 5158 Da | 244.27 Da |
| Half-Life | Minutes to hours; protease-sensitive | 3-4 h |
| Amino Acids | 45 | 2 |
| Typical Dose | Research use only; no approved human dose | 400-800 mg/day |
| Route | Topical / Intranasal / Research parenteral | Oral |
| Purity | ≥98% | ≥98% |
| Studies Count | 380 | 200 |
| Research Status | Pre-clinical | Clinical |
HBD-3 Benefits
- ✓strong antimicrobial activity
- ✓skin and mucosal defense
- ✓innate immune signaling modulation
- ✓wound-healing support
Pidotimod Benefits
- ✓oral-immune-support
- ✓respiratory-infection-adjunct
- ✓innate-immunity
- ✓adaptive-immunity-support
HBD-3 Dosing
0.1–10 µM in vitro|1–5 mg/kg in animal models|No established human dose
Pidotimod Dosing
400 mg PO BID|typically 15-30 days|repeated seasonal cycles in studies
HBD-3 Side Effects
- ⚠cell toxicity at high concentrations
- ⚠rapid proteolysis
- ⚠inflammatory activation in some contexts
Pidotimod Side Effects
- ⚠nausea
- ⚠diarrhea
- ⚠rash
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.
Pidotimod
Pidotimod has human data in recurrent infections, especially where immune stimulation or reduced infection frequency is the target. Published work commonly reports improvements in phagocyte function, mucosal defense, and fewer respiratory infection episodes.
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