What is LL-37?
LL-37 is a naturally occurring human cathelicidin peptide researched for its antimicrobial, immunomodulatory, and wound-healing properties.
Where to Buy LL-37 Online
22 vendors in our directory currently list LL-37 — the top 15 online stores are compared below. The comparison shows each vendor's third-party testing status, COA availability, editorial and community ratings, and any active coupon — ordered by our directory ranking.
| Vendor | Trust signals | Editorial rating | User reviews | Coupon | Visit vendor |
|---|---|---|---|---|---|
| 4.8Rated 4.8 out of 5 | No user reviews | — | Visit site | |
| 4.9Rated 4.9 out of 5 | No user reviews | — | Visit site | |
| 4.9Rated 4.9 out of 5 | No user reviews | — | Visit site | |
| 4.8Rated 4.8 out of 5 | No user reviews | — | Visit site | |
| 4.8Rated 4.8 out of 5 | No user reviews | — | Visit site | |
| 4.8Rated 4.8 out of 5 | No user reviews | — | Visit site | |
| 4.7Rated 4.7 out of 5 | No user reviews | — | Visit site | |
| 4.4Rated 4.4 out of 5 | No user reviews | — | Visit site | |
| 4.3Rated 4.3 out of 5 | No user reviews | — | Visit site | |
| 4.3Rated 4.3 out of 5 | No user reviews | — | Visit site | |
| 4.3Rated 4.3 out of 5 | No user reviews | — | Visit site | |
| 4.1Rated 4.1 out of 5 | No user reviews | — | Visit site | |
| 3.8Rated 3.8 out of 5 | No user reviews | — | Visit site | |
| 3.6Rated 3.6 out of 5 | No user reviews | — | Visit site | |
| 3.2Rated 3.2 out of 5 | No user reviews | — | Visit site |
.jpg){kind=small}
.jpg){kind=small}
Some outbound links are affiliate links: purchases made through them may earn PeptidesFinder a commission at no extra cost to you.
Bulk & wholesale LL-37 suppliers
1 wholesale supplier list LL-37 for bulk orders. Quote-based — send an enquiry from the supplier's page and compare MOQ, lead time and COAs.
Mechanism of Action
It disrupts microbial membranes and modulates immune signaling, promoting pathogen clearance and tissue repair.
Clinical Research
Cited studies
Researched Benefits
Research on LL-37 has focused on the following areas:
- Endogenous cathelicidin peptide with broad-spectrum antibacterial, antiviral, and antifungal activity
- Modulates innate immune responses and helps resolve chronic inflammation
- Investigated for supporting wound healing, biofilm disruption, and mucosal defense
Side Effects & Safety
Adverse reactions and limitations documented for LL-37 include:
- Local irritation
- Inflammatory response at high doses
