# LL-37 Antimicrobial Peptide: Research Overview

**By TelosRX Editorial Team** · 2026-01-08

**LL-37 is the only human cathelicidin antimicrobial peptide and is studied in immune and antimicrobial research.** Patients can request a telehealth evaluation through the [TelosRX Telehealth Portal](https://telosrx.com) to discuss compounded access.

## What Is LL-37?

LL-37 is a 37-amino-acid peptide derived from human cathelicidin. It is studied in preclinical research for antimicrobial and immune-modulating pathways.

LL-37 is not an FDA-approved drug. It is available through compounding pharmacies under valid prescription.

## Common Discussion Points

Patients often raise LL-37 during evaluations for:

-   Antimicrobial pathway research interest
-   Immune modulation discussions
-   Skin and barrier research
-   Inflammation research applications

A licensed provider determines clinical appropriateness individually.

## Pre-PCAC July 2026 Regulatory Context

LL-37 is under PCAC review ahead of the July 2026 meeting. Patients interested in compounded access should consult a licensed provider while it remains available.

## How TelosRX Handles LL-37

TelosRX is an online-first telehealth service. Patient evaluation is asynchronous, and compounded medications are prepared through our licensed pharmacy partner.

-   **Step 1:** Complete an asynchronous telehealth intake at [TelosRX](https://telosrx.com).
-   **Step 2:** Licensed provider review.
-   **Step 3:** Prescription issued if clinically appropriate.
-   **Step 4:** Compounded LL-37 ships discreetly to your door.

## Important Compliance Information

LL-37 is not FDA-approved. Compounded preparations are prepared under federal compounding regulations.

Prescriptions require evaluation by a licensed healthcare provider. Approval is not guaranteed. Individual results vary.

TelosRX operates under LegitScript-certified telehealth standards.

Start your private evaluation at [TelosRX](https://telosrx.com).

**Tags:** antimicrobial, LL-37, peptide, telehealth

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> Source: [Telos RX](https://www.telosrx.com/blogs/peptides/ll-37-antimicrobial-peptide-research)