healing
LL-37
Antimicrobial cathelicidin
Cheapest offer
$6.60/mg
18 vendors tracked18 live pricesLast crawl: 2026-06-10 18:02 UTC
About
The only human cathelicidin, studied for antimicrobial activity, wound healing, and modulation of innate immunity.
Also known as: Cathelicidin, Human cationic antimicrobial peptide
Reconstitution calculator
!
For research purposes only. Not for human consumption. Always verify calculations independently.
Cost-per-dose recalculates as you adjust the calculator above.
LL-37 · 5mg
14 vendors
Watch
$37.99
$7.60/mg· $1.90/dose
In stock◎ Best $/mg
Operational
$42.99
$8.60/mg· $2.15/dose
In stock▲ 13.2% vs best
Operational
$43.19
$8.64/mg· $2.16/dose
In stock▲ 13.7% vs best
B
Operational$45.00
$9.00/mg· $2.25/dose
Out of stock▲ 18.5% vs best
Operational
$50.00
$10.00/mg· $2.50/dose
In stock▲ 31.6% vs best
B
Operational$54.99
$11.00/mg· $2.75/dose
In stockOn sale▲ 44.7% vs best
B-
Operational$59.25
$11.85/mg· $2.96/dose
In stockOn sale▲ 56.0% vs best
Operational
$64.99
$13.00/mg· $3.25/dose
In stock▲ 71.1% vs best
B-
Operational$69.00
$13.80/mg· $3.45/dose
In stock▲ 81.6% vs best
B-
Operational$77.00
$15.40/mg· $3.85/dose
In stock▲ 102.7% vs best
Watch
$77.00
$15.40/mg· $3.85/dose
In stock▲ 102.7% vs best
Operational
$84.99
$17.00/mg· $4.25/dose
In stock▲ 123.7% vs best
Operational
$89.00
$17.80/mg· $4.45/dose
In stock▲ 134.3% vs best
Operational
$94.97
$18.99/mg· $4.75/dose
Out of stock▲ 150.0% vs best
| Vendor | Grade | Risk | Price | $/mg | Trend | $/dose at 0.25 mg | Stock | |
|---|---|---|---|---|---|---|---|---|
| Modern Research Peptides (.net) US | B- | Watch | $37.99 ◎ Best $/mg | $7.60 | $1.90 | In stock | Buy with code → | |
| AMC Essentials US | B | Operational | $42.99 ▲ 13.2% | $8.60 | $2.15 | In stock | Visit → | |
| Research Peptides Europe EU | A | Operational | $43.19 ▲ 13.7% | $8.64 | $2.16 | In stock | Visit → | |
| Ion Peptide US | B | Operational | $45.00 ▲ 18.5% | $9.00 | $2.25 | Out | Visit → | |
| Peptide Crafters US | A | Operational | $50.00 ▲ 31.6% | $10.00 | $2.50 | In stock | Visit → | |
| MS Peptides US | B | Operational | $54.99 On sale ▲ 44.7% | $11.00 | $2.75 | In stock | Visit → | |
| Southern Aminos US | B- | Operational | $59.25 On sale ▲ 56.0% | $11.85 | $2.96 | In stock | Visit → | |
| Research Peptides US | B | Operational | $64.99 ▲ 71.1% | $13.00 | $3.25 | In stock | Visit → | |
| Lab Sourced US | B- | Operational | $69.00 ▲ 81.6% | $13.80 | $3.45 | In stock | Visit → | |
| Atomik Labz US | B- | Operational | $77.00 ▲ 102.7% | $15.40 | $3.85 | In stock | Visit → | |
| Solution Peptides US | B- | Watch | $77.00 ▲ 102.7% | $15.40 | $3.85 | In stock | Visit → | |
| Pure Lab Peptides US | B- | Operational | $84.99 ▲ 123.7% | $17.00 | $4.25 | In stock | Visit → | |
| Core Peptides US | A | Operational | $89.00 ▲ 134.3% | $17.80 | $4.45 | In stock | Visit → | |
| BioLongevity Labs US | B | Operational | $94.97 ▲ 150.0% | $18.99 | $4.75 | Out | Visit → |
Sort:
Last crawl 2026-06-10Sort:
2026-06-10LL-37 · 10mg
4 vendors
B-
Operational$65.99
$6.60/mg· $1.65/dose
In stock◎ Best $/mg
B
Operational$78.00
$7.80/mg· $1.95/dose
In stock▲ 18.2% vs best
B-
Watch$80.00
$8.00/mg· $2.00/dose
In stock▲ 21.2% vs best
Operational
$110.00
$11.00/mg· $2.75/dose
In stockOn sale▲ 66.7% vs best
| Vendor | Grade | Risk | Price | $/mg | Trend | $/dose at 0.25 mg | Stock | |
|---|---|---|---|---|---|---|---|---|
| Valor Peptides US | B- | Operational | $65.99 ◎ Best $/mg | $6.60 | $1.65 | In stock | Buy with code → | |
| EZ Peptides US | B | Operational | $78.00 ▲ 18.2% | $7.80 | $1.95 | In stock | Visit → | |
| Ameano Peptides US | B- | Watch | $80.00 ▲ 21.2% | $8.00 | $2.00 | In stock | Visit → | |
| Ascension Peptides US | B | Operational | $110.00 On sale ▲ 66.7% | $11.00 | $2.75 | In stock | Visit → |
Sort:
Last crawl 2026-06-10Sort:
2026-06-10§ Frequently asked
Common questions about LL-37
- What is LL-37?
- LL-37 (cathelicidin) is the only human cathelicidin peptide. It is studied for direct antimicrobial activity, wound healing, and modulation of innate immunity in preclinical research.
- Is LL-37 FDA-approved?
- No. LL-37 is not approved by the FDA or any major regulator for clinical use. Research-peptide vendors sell it for laboratory research only.
- What is the half-life of LL-37?
- Pepticker does not publish a quantitative plasma half-life for LL-37 — values reported in the published literature vary by route and model, and circulating pharmacokinetics in humans are not as well characterized as for prescription peptides.
- What dose of LL-37 is used in research?
- Doses reported in published preclinical studies vary by species, route, and antimicrobial or immune endpoint. Pepticker does not publish a dosing protocol — refer to the original literature for the model you are reproducing.
- What is LL-37 commonly stacked with?
- Researchers most commonly pair LL-37 with KPV for mucosal-immunity work and with Thymosin Alpha-1 in immune-modulation protocols, based on published preclinical research.
- Is LL-37 legal?
- LL-37 is sold for research use in the US, Canada, and the UK. In Australia it is TGA Schedule 4 and personal import is tightly controlled. Status is informational — not legal advice.
Editorial summary of published research. Not medical advice. See /methodology for sourcing.
Research use only. The compounds listed on this page are not approved for human use through research-chemical channels. Nothing on this page is medical advice. Consult a qualified clinician before considering any peptide protocol. See affiliate disclosure and our scoring methodology.
Keep exploring
More on LL-37 & related research
Related peptides
- KPV— Anti-inflammatory α-MSH tripeptide
- Thymosin Alpha-1— Clinical immunomodulator
- BPC-157— Tissue-repair research peptide
- TB-500— Actin-binding healing fragment
- Thymosin Beta-4 (TB-4)— Full-length actin-sequestering peptide
Compare head-to-head
Vendors selling this peptide