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Minimum Order of 10 vials required — 21-day lead time for ordering and COA testing
LL-37
21-Day Lead
Immune/AntimicrobialLyophilized Powder

LL-37

5mg · 2ml

SKU: LL-37-5mg

LL-37 is a synthetic version of human cathelicidin, a critical antimicrobial peptide produced by the innate immune system as a first-line defense against bacteria, viruses, fungi, and biofilms. It simultaneously promotes tissue restoration and balanced immune signaling, with applications in chronic infections, biofilm-related conditions, and immune dysregulation.


Product Specifications

Strength

5mg

Volume / Qty

2ml

Form

Lyophilized Powder

Suggested Retail Price

$132.00

Dosing Guide

Recommended Dose

Per clinician protocol

Route

Subcutaneous

Frequency

Protocol-dependent

Note: Cathelicidin antimicrobial peptide.

Clinician Access Required

Sign in to view clinician pricing & place orders

LL-37 is available exclusively to verified clinicians under IRB-approved research protocol PPRN-001-2025.

Per-batch COA verifiedcGMP / ISO 9001 / 503A/503B sourcedIRB-protected research use

IRB-Approved Research Protocol

PPRN-001-2025 ·IRCM-2025-467

Approved December 3, 2025 · Principal Investigator: Dr. M. Scott Mortensen, MD, MPAS, MLT

cGMP & ISO 9001
503A/503B Sources
Per-Batch
COA Tested
MD-Led
Clinical Oversight
50-State
Licensed
Most PopularBundle Pricing Available

Save up to 80% with the 10,000 Growth Bundle

LL-37 is included in this clinic-tier package. Bundle includes higher volume in weight loss, mitochondrial health, longevity, and tissue repair with 1 free Tirz 15mg + 1 free Reta 15mg as a bonus.

Bundle Price:$10,000
Wholesale Value:~$10,958
Patient Retail:~$50,000+

For Clinicians

Clinical Reference

Pharmacology, safety, monitoring, and dosing reference for LL-37. Always individualize based on patient context.

Mechanism of Action

Receptor / Target

Cathelicidin antimicrobial peptide; disrupts bacterial membranes and modulates innate immunity

Half-Life

~30–90 minutes

Onset of Action

1–2 weeks for antimicrobial effect

Metabolism

Proteolytic degradation

Cautions & Contraindications

Contraindicated In

  • Hypersensitivity to LL-37
  • Pregnancy and lactation

Use Caution With

  • Active autoimmune disease (cathelicidin elevated in psoriasis/lupus)
  • May trigger inflammatory response in predisposed patients
  • Limited human safety data

Suggested Labs to Monitor

CBC with differential

Baseline / 8 weeks

hs-CRP

Baseline / 4 weeks

CMP

Baseline / 8 weeks

Lab interpretation guidance comes from peer-reviewed literature. Always individualize based on patient context.

Reconstitution Calculator

Calculate exactly how many units to draw on a U-100 insulin syringe for your target dose. Pre-filled with LL-37 defaults — adjust as needed.

Total peptide in the vial (e.g. 10mg)

Volume of BAC water used to reconstitute

Single-injection dose in micrograms

Draw to

10.0units on a U-100 syringe

Per mL

2500 mcg

Doses per vial

~20

Always double-check reconstitution math. This tool is for reference — clinician supervision required.

Plumb DISCOVER

What LL-37 targets

Patient goals, biomarkers, and wearable signals this peptide addresses. Powers the future Plumb AI protocol engine.

Patient Goals

Immunity

Biomarkers Tracked

hs-CRP

Clinical Synergy

Frequently stacked with LL-37

Peptides commonly combined with LL-37 for synergistic clinical outcomes.

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