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Immune · Immune peptide (research)

LL-37

Research use · ships internationally
$80.00 / 5mg vial
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LL-37 reference vial
Drug class
Immune peptide (research)
Status
Compounded (503A)
Reviewed
2026-06-01 · Kindr Health Clinical Team

What LL-37 is studied for

  • Antimicrobial activity (research)
  • Gut health (research)
  • Microbiome balance (research)

Mechanism of action

LL-37 is being studied in the immune category. Human antimicrobial peptide for gut and immune defense. Mechanism of action varies by study model; refer to the kindr clinical library for a deeper writeup.

Frequently asked questions

What is LL-37?

LL-37 is a immune peptide. Human antimicrobial peptide for gut and immune defense.

What is LL-37 studied for?

Published research has examined LL-37 for antimicrobial activity, gut health, microbiome balance. Human clinical evidence varies by indication.

Is LL-37 FDA-approved?

No. LL-37 is not FDA-approved for the indications listed. It is available compounded by 503A pharmacies under clinician supervision, or for international research use only on this catalog.

How is LL-37 used in research?

Protocols vary by study. LL-37 is typically administered subcutaneously in research settings. No validated human therapeutic dose exists outside FDA-approved indications.

What are the known risks?

Long-term human safety data for LL-37 is limited. Theoretical risks vary by mechanism. Any human use should be supervised by a licensed clinician.

Add to cart · International research catalogBuy LL-37 in the kindr Peptides Shop →
Frequently stacked with · Save 15%

Build the LL-37 protocol stack

Research protocols commonly pair LL-37 with the peptides below. Add all three vials to unlock the bundle discount at checkout.

This peptide
LL-37
$80.00
+ Add
Thymosin Alpha-1
Immune modulation and T-cell support.
$75.00
+ Add
KPV
Anti-inflammatory tripeptide from α-MSH — studied for gut and skin.
$50.00
$205.00 $174.25
You save $30.75 on the stack
Add all 3 to cart →

Related peptides in Immune

KPVAnti-inflammatory tripeptide from α-MSH — studied for gut and skin.
View details
Thymosin Alpha-1Immune modulation and T-cell support.
View details
VIP (Vasoactive Intestinal Peptide)Anti-inflammatory peptide studied for mast cell and CIRS support.
View details
LL-37Research-grade antimicrobial · CPC LL37-002
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Cys-LL-37Research-grade antimicrobial · CPC LL37-005
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LL-37-CysResearch-grade antimicrobial · CPC LL37-007
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Continue across the Kindr entity graph

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Research & medical disclosure. This page is educational reference content reviewed by a licensed physician. It is not medical advice and does not establish a clinician–patient relationship. Peptides offered on the kindr Peptides Shop are sold for in vitro laboratory research purposes only and ship worldwide, including the United States. For U.S. clinical care, use the kindr Longevity intake.