LL-37
The body's own antimicrobial peptide — part of the first line of immune defence.
Best value right now · 5 mg
AC
Amino Club
IN STOCKUNTESTED
Per mg41% under the $11.90 median
Vial price5 mg · verified Aug 21
Avg per mg · 5 mg
$16.93+47.2%
Ranged $11.50 – $17.50 across 38 vendorsCompare 32 vendors · 5 mg
VendorStock
26
PeptidologyTRUST 7.6 · OUT
$9.00$45.00
27
Good ScienceUNTESTED · OUT · 20% OFF
$8.80$44.00$55.00
28
Verified PeptidesUNTESTED · OUT
$13.14$65.70
29
Real PeptidesUNTESTED · OUT
$16.00$80.00
31
Behemoth LabzUNTESTED · OUT
$21.73$108.66
32
SwissChemsTRUST 4.0 · OUT
$143.98$719.90
Showing 8 of 32 vendors · 24 more from $8.60/mg
LL-37 prices verified Aug 21, 2026
$7.00/mgAmino Club · $34.99
Buy best pricePrice movement · 30 days
−11.1%median per mg, all sizes
Cheapest ever recorded: $5.31/mg on Jun 15. Today is 1.7% above that low.See our top-ranked LL-37 vendors
Ranked by Finnrick trust score, independent lab testing, and price.
Compare LL-37 head-to-head
All peptide comparisonsQuick Summary
Your body's natural antibiotic peptide — studied for fighting stubborn bacterial infections and supporting immune defense. Available from 38 vendors, priced from $34.99 to $719.90.
Research: LL-37 kills both surface-level and hidden Staph bacteria, and has entered early-phase clinical trials for direct injection into melanoma tumors to stimulate immune response.
Side effects: Injection site reactions, Can be toxic to cells at high doses
Research compoundEarly-phase clinical trials for select indications
- 30 of 38 vendors currently have it in stock
- Highest-rated vendor: NUPEPS Peptides (9.0 Finnrick score)
- Most common vial size: 5mg
- Category: Immune / Inflammation — Immune modulators and anti-inflammatory peptides
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