Side-by-Side Comparison · 2026

Human Neutrophil Peptide 1 vs Nisin

Human Neutrophil Peptide 1 vs Nisin — mechanism, half-life, dosing, and research status compared. Which is right for your protocol?

Human Neutrophil Peptide 1
Antimicrobial Peptide

Human Neutrophil Peptide 1 (HNP-1) is the most abundant alpha-defensin in human neutrophil granules, where it constitutes up to 30% of total protein content. Alpha-defensins HNP-1, -2, -3, and -4 are the human versions of the ancestral defensin family....

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Nisin
Antimicrobial Peptide

Nisin A is a 34-residue lanthipeptide bacteriocin produced by Lactococcus lactis. It is the only bacteriocin approved for food use by the FDA (GRAS status, E234 in EU), widely used as a natural food preservative in dairy, canned goods, and processed meats....

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Key Parameters
Parameter Human Neutrophil Peptide 1 Nisin
Category Antimicrobial Peptide Antimicrobial Peptide
Research Preclinical GRAS Food Use / Preclinical (medical)
Half-Life Hours (in tissues) Minutes-hours (pH and protease dependent)
Typical Dose N/A N/A (food use to ~500 ppm)
Frequency N/A N/A
Route Endogenous (secreted by neutrophils) / Research only Topical / Oral (food use)
FDA Status Not approved GRAS (food) / Investigational (medical)

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Frequently Asked Questions
What is the difference between Human Neutrophil Peptide 1 and Nisin?
Human Neutrophil Peptide 1: Human Neutrophil Peptide 1 (HNP-1) is the most abundant alpha-defensin in human neutrophil granules, where it constitutes up to 30% of total protein content. Alpha-defensins HNP-1, -2, -3, and -4 are ... Nisin: Nisin A is a 34-residue lanthipeptide bacteriocin produced by Lactococcus lactis. It is the only bacteriocin approved for food use by the FDA (GRAS status, E234 in EU), widely used as a natural food p...
Which has a longer half-life, Human Neutrophil Peptide 1 or Nisin?
Human Neutrophil Peptide 1 half-life: Hours (in tissues). Nisin half-life: Minutes-hours (pH and protease dependent).
Can you stack Human Neutrophil Peptide 1 and Nisin?
Human Neutrophil Peptide 1 and Nisin are in the same category and used together in research protocols. Always consult relevant literature and follow appropriate guidelines.

For research use only. Not medical advice. ASCEND does not conduct or endorse any specific research protocol. Always consult relevant scientific literature and regulatory guidelines.