Side-by-Side Comparison · 2026

Aurein vs Caerin

Aurein vs Caerin — mechanism, half-life, dosing, and research status compared. Which is right for your protocol?

Aurein
Antimicrobial Peptide

Aurein peptides are a large family of short (13-25 residue) antimicrobial and anticancer peptides isolated from the Australian green and golden bell frog Litoria aurea and related species. 2 is the smallest member with activity against Gram-positive bacteria....

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Caerin
Antimicrobial Peptide

Caerins are a family of antimicrobial peptides from the Australian Blue Mountains tree frog Litoria caerulea and related species. They adopt a unique helix-kink-helix conformation with a proline-induced kink in the center of the molecule....

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Key Parameters
Parameter Aurein Caerin
Category Antimicrobial Peptide Antimicrobial Peptide
Research Preclinical Preclinical
Half-Life Minutes (proteolytic) Minutes (proteolytic)
Typical Dose N/A N/A
Frequency N/A N/A
Route Research only Research only
FDA Status Not approved Not approved

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Frequently Asked Questions
What is the difference between Aurein and Caerin?
Aurein: Aurein peptides are a large family of short (13-25 residue) antimicrobial and anticancer peptides isolated from the Australian green and golden bell frog Litoria aurea and related species. 2 is the sm... Caerin: Caerins are a family of antimicrobial peptides from the Australian Blue Mountains tree frog Litoria caerulea and related species. They adopt a unique helix-kink-helix conformation with a proline-induc...
Which has a longer half-life, Aurein or Caerin?
Aurein half-life: Minutes (proteolytic). Caerin half-life: Minutes (proteolytic).
Can you stack Aurein and Caerin?
Aurein and Caerin 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.