LL-37
Immune / InflammationThe only human cathelicidin antimicrobial peptide. Plays a key role in innate immune defense against bacterial, viral, and fungal infections.
Starting from
$39.99
Vendors tracked
36
Prices updated
Apr 8, 2026
Compare Prices
Select Dosage
— most common size pre-selected
Price
$40.00
Per mg
$8.00
Price
$40.00
Per mg
$8.00
Price
$42.99
Per mg
$8.60
Price
$45.00
Per mg
$9.00
Price
$45.00
Per mg
$9.00
Price
$45.00
Per mg
$9.00
Price
$44.99
$49.99
Per mg
$9.00
Price
$49.99
Per mg
$10.00
Price
$49.99
Per mg
$10.00
Price
$50.00
Per mg
$10.00
Price
$50.00
Per mg
$10.00
Price
$59.00
Per mg
$11.80
Price
$64.99
Per mg
$13.00
Price
$65.70
Per mg
$13.14
Price
$71.99
Per mg
$14.40
Price
$74.00
Per mg
$14.80
Price
$75.00
Per mg
$15.00
Price
$67.50
$75.00
Per mg
$13.50
Price
$75.00
Per mg
$15.00
Price
$77.00
Per mg
$15.40
Price
$80.00
Per mg
$16.00
Price
$85.00
Per mg
$17.00
Price
$86.00
Per mg
$17.20
Price
$94.99
Per mg
$19.00
Price
$95.00
Per mg
$19.00
Price
$80.00
$100.00
Per mg
$16.00
Price
$108.66
Per mg
$21.73
True PeptideBest Value | — | $40.00 | $8.00 | Yes | |
Ruo Bio | — | $40.00 | $8.00 | Yes | |
AMC Essentials | — | $42.99 | $8.60 | Yes | |
Ion Peptide | — | $45.00 | $9.00 | Yes | |
Simple Peptide | 6.8/10 | $45.00 | $9.00 | Yes | |
Alpha Omega | — | $45.00 | $9.00 | Yes | |
Orbitrex Peptides10% OFF | 9.0/10 | $44.99$49.99 | $9.00 | Yes | |
NorthWest Peptides | — | $49.99 | $10.00 | Yes | |
Peptidology | 7.6/10 | $49.99 | $10.00 | Yes | |
Glow Aminos | — | $50.00 | $10.00 | Yes | |
Flawless Compounds | — | $50.00 | $10.00 | Yes | |
Southern Aminos | — | $59.00 | $11.80 | Yes | |
PurePEPS | 6.2/10 | $64.99 | $13.00 | Yes | |
Verified Peptides | — | $65.70 | $13.14 | Yes | |
SwissChems | 3.6/10 | $71.99 | $14.40 | Yes | |
Skye Peptides | — | $74.00 | $14.80 | Yes | |
Protide Health | — | $75.00 | $15.00 | Yes | |
Molecular Edge10% OFF | — | $67.50$75.00 | $13.50 | Yes | |
Paramount Peptides | 6.7/10 | $75.00 | $15.00 | Yes | |
Solution Peptides | — | $77.00 | $15.40 | Yes | |
Real Peptides | — | $80.00 | $16.00 | No | |
NUPEPS Peptides | 9.0/10 | $85.00 | $17.00 | Yes | |
Biotech Peptides | — | $86.00 | $17.20 | Yes | |
Loti Labs | — | $94.99 | $19.00 | Yes | |
Peptide Sciences | 6.8/10 | $95.00 | $19.00 | Yes | |
Genetic Peptide20% OFF | — | $80.00$100.00 | $16.00 | Yes | |
Behemoth Labz | — | $108.66 | $21.73 | No |
Prices verified as of April 8, 2026
Your body's natural antibiotic peptide — studied for fighting stubborn bacterial infections and supporting immune defense. Available from 36 vendors, priced from $39.99 to $180.00.
- 32 of 36 vendors currently have it in stock
- Highest-rated vendor: Orbitrex Peptides (9.0 Finnrick score)
- Most common vial size: 5mg
- Category: Immune / Inflammation — Immune modulators and anti-inflammatory peptides
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