Indolicidin vs HNP-1

Head-to-head comparison of Indolicidin (Indolicidin (Bovine Neutrophil Antimicrobial Peptide)) and HNP-1 (Human Neutrophil Peptide 1 (Alpha-Defensin 1)) — benefits, dosing, side effects, research data, and where to buy.

Research Score

PropertyIndolicidinHNP-1
CategoryImmune SupportImmune Support
Full NameIndolicidin (Bovine Neutrophil Antimicrobial Peptide)Human Neutrophil Peptide 1 (Alpha-Defensin 1)
Molecular Weight2111 Da3443 Da
Half-LifeMinutes to hours; protease-sensitiveMinutes to hours; protease-sensitive
Amino Acids1330
Typical DoseResearch use only; no approved human doseResearch use only; no approved human dose
RouteTopical / Research parenteralTopical / Research parenteral
Purity≥98%≥98%
Studies Count240610
Research StatusPre-clinicalPre-clinical

Indolicidin Benefits

  • broad-spectrum bactericidal activity
  • anti-biofilm effects
  • membrane disruption
  • innate immune support

HNP-1 Benefits

  • neutrophil-derived antimicrobial defense
  • broad pathogen killing
  • immune cell signaling
  • mucosal protection

Indolicidin Dosing

0.1–10 µM in vitro|1–10 mg/kg in animal models|No established human dose

HNP-1 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

HNP-1 Side Effects

  • membrane toxicity at high concentrations
  • short in vivo stability
  • potential inflammation amplification

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.

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.

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Common Stacking Partners

Indolicidin stacks with:

zincvitamin DN-acetylcysteine

HNP-1 stacks with:

vitamin Czincprobiotics
antimicrobial-peptideanti-biofilmneutrophil-derivedinnate-immunityalpha-defensinneutrophil-peptide