49 suppliers scored7 FDA warning letters tracked8 closures on recordUpdated October 2026 · How scoring works
Peptide Ranking
37-amino-acid peptide

LL-37

A 37-amino-acid peptide fragment of human cathelicidin. Listed as 5 mg vials by a smaller set of suppliers.

Also listed as: Cathelicidin fragment

26suppliers listing it
39priced listings
$14.60median per mg
$7.16lowest per mg
3certificates on file

Price by size

SizeListingsMedian priceLowest priceLowest atMedian $/mg
5 mg27$74.55$35.79Alpha Peptides · listing$14.91

All listings

SupplierScoreListingSizePrice$/mgCOA on page
Nexaph63/100LL-37 10mg (10 vials/kit)
vial
100 mg$378
10 units · $37.80 each
$3.78NoView listing
Alpha Peptides71/100LL-37 – Dosage: 5 MG
vial · out of stock
5 mg$35.79$7.16YesView listing
Alpha Labs Peptides68/100LL-37 (5mg) (10 Vials)
bulk
5 mg$381
10 units · $38.15 each
$7.63YesView listing
Ascension Peptides77/100LL-37 (10MG)
vial
10 mg$78.00$7.80NoView listing
Paramount Peptides76/100LL-37 (10mg)
vial
10 mg$85.00$8.50NoView listing
Receptor Chem50/100LL-37 (Size: 5mg | 99% Purity 99% Purity)
vial · listed in GBP
5 mg$44.44$8.89NoView listing
Modern Aminos15/100LL-37 5MG
vial
5 mg$47.00$9.40NoView listing
Direct Peptides41/100LL-37 Peptide Vial – 5mg vial
vial · listed in GBP
5 mg$49.33$9.87NoView listing
Peptide Crafters36/100LL-37 (CAP-18) (5mg)
vial
5 mg$50.00$10.00NoView listing
Alpha Labs Peptides68/100LL-37 (5mg)
vial
5 mg$51.09$10.22YesView listing
Direct Peptides41/100LL-37 (Cap-18) Pre-Mixed Pen 5mg – 1 single mixed cartridge
pen · listed in GBP
5 mg$52.60$10.52NoView listing
Licensed Peptides84/100LL-37 5mg - 5mg, 10
vial · out of stock
50 mg$570$11.40NoView listing
Liberty Peptides64/100LL-37 (5mg)
vial
5 mg$59.00$11.80YesView listing
Direct Peptides41/100LL-37 Peptide Vial – 5mg vial kit_bac water & needles
vial · listed in GBP
5 mg$60.73$12.15NoView listing
Polaris Peptides26/100LL-37 10mg
vial
10 mg$125$12.50NoView listing
Research Peptides32/100LL-37 5mg
vial
5 mg$64.99$13.00YesView listing
Verified Peptides62/100LL-37 Peptide (5MG)
vial
5 mg$65.00$13.00YesView listing
Atomik Labz39/100BULK PACK LL-37 -5mg (10 VIALS)
bulk
5 mg$693
10 units · $69.30 each
$13.86YesView listing
Licensed Peptides84/100LL-37 5mg - 5mg, 5
vial · out of stock
25 mg$350$14.00NoView listing
Swiss Chems59/100LL-37 (CAP-18) 5mg – LL-37 (CAP-18) 5mg: KIT (10 vials)
bulk · out of stock
50 mg$720
10 units · $71.99 each
$14.40NoView listing
Swiss Chems59/100LL-37 (CAP-18) 5mg – LL-37 (CAP-18) 5mg: 1 vial
vial
5 mg$71.99$14.40NoView listing
Evolve Peptides70/100LL-37 5 mg
vial
5 mg$72.00$14.40NoView listing
Skye Peptides23/100LL-37 5 mg
vial
5 mg$74.00$14.80NoView listing
NuScience Peptides55/100LL-37 Cathelicidin Peptide - 5 mg
vial
5 mg$74.55$14.91NoView listing
Paramount Peptides76/100LL-37 (5mg)
vial
5 mg$75.00$15.00YesView listing
Atomik Labz39/100LL-37 -5mg
vial
5 mg$77.00$15.40YesView listing
Loti Labs58/100LL-37 5mg
vial
5 mg$79.99$16.00NoView listing
Licensed Peptides84/100LL-37 5mg - 5mg, 3
vial · out of stock
15 mg$249$16.60NoView listing
Biotech Peptides65/100LL-37 (5mg)
vial
5 mg$86.00$17.20YesView listing
Direct Peptides41/100LL-37 (Cap-18) Pre-Mixed Pen 5mg – 1 Pre Mixed Cartridge and Kit
pen · listed in GBP
5 mg$86.89$17.38NoView listing
UK Peptides50/100LL-37 5mg
vial · listed in GBP
5 mg$87.63$17.53YesView listing
Core Peptides74/100LL-37 - 5MG
vial
5 mg$89.00$17.80YesView listing
Umbrella Labs59/100LL-37 PEPTIDE 2MG/5MG VIAL - 5 Milligrams
vial
5 mg$90.00$18.00NoView listing
BioLongevity Labs72/100LL-37 (5mg)
vial
5 mg$94.97$18.99NoView listing
Evolve Peptides70/100LL-37 2 mg
vial · out of stock
2 mg$40.00$20.00NoView listing
Licensed Peptides84/100LL-37 5mg - 5mg, 1
vial
5 mg$99.99$20.00NoView listing
PureRawz37/100LL-37 (CAP-18) - 5mg
vial
5 mg$104$20.87NoView listing
Direct Peptides41/100LL-37 (Cap-18) Pre-Mixed Pen 5mg – 2 pre-mixed cartridges
bulk · listed in GBP
5 mg$105$21.04NoView listing
Paramount Peptides76/100LL-37 Complex (5mg)
vial
5 mg$106$21.25NoView listing
Umbrella Labs59/100LL-37 PEPTIDE 2MG/5MG VIAL - 2 Milligrams
vial
2 mg$45.00$22.50NoView listing
Direct Peptides41/100LL-37 (Cap-18) Pre-Mixed Pen 5mg – 3 pre-mixed cartridges
bulk · listed in GBP
5 mg$142$28.40NoView listing
Direct Peptides41/100LL-37 Nasal Spray – 30ml
nasal · listed in GBP
—$113—NoView listing
Direct Peptides41/100LL-37 Nasal Spray – 15ml
nasal · listed in GBP
—$59.49—NoView listing
Extreme Peptides44/100LL-37
vial
—$94.99—NoView listing
Limitless Biotech61/100LL-37
vial
—gated—NoView listing
USA Peptides24/100LL-37 Injection
other
—$125—NoView listing
Enhanced Peptides39/100LL-37
vial
—$60.00—NoView listing
Pure Peptide Labs74/100LL-37
vial
—$69.95—NoView listing
Simple Peptide65/100LL-37
vial
—gated—NoView listing
Xcel Peptides36/100LL-37
vial
—gated—NoView listing
Peptide Warehouse61/100LL-37
vial
—$84.99—NoView listing

Public certificates for LL-37

SupplierProductLotLaboratoryDatePurityMethod
Peptide WarehouseLL-37 5mgAccession 2610140071Freedom Diagnostics2026-10-1699.59%HPLC+MSOpen
Liberty PeptidesLL-37 (5mg)LPUS37001Not named2026-03-0599.54%—Open
Verified PeptidesLL-37 Peptide (5MG)—Not named———Open

Suppliers that list LL-37, by score

Licensed Peptidespublic certificates · US84/100Ascension Peptidespublic certificates · US77/100Paramount Peptidespublic certificates · US76/100Core Peptidespublic certificates · US74/100Pure Peptide Labspublic certificates · US74/100BioLongevity Labspublic certificates · US72/100Alpha Peptidespublic certificates · US71/100Evolve Peptidespublic certificates · US70/100Alpha Labs Peptidespublic certificates · US68/100Biotech Peptidespublic certificates · US65/100Simple Peptidecertificates not public · US65/100Liberty Peptidespublic certificates · US64/100Nexaphpublic certificates63/100Verified Peptidespublic certificates · US62/100Limitless Biotechpublic certificates · US61/100Peptide Warehousepublic certificates · US61/100Swiss Chemspublic certificates · US59/100Umbrella Labspublic certificates · US59/100Loti Labspublic certificates · US58/100NuScience Peptidespublic certificates · US55/100Receptor Chempublic certificates · UK50/100UK Peptidespublic certificates · UK50/100Extreme Peptidespublic certificates · US44/100Direct Peptidespublic certificates41/100Atomik Labzcertificates not public · US39/100Enhanced Peptidescertificates not public · US39/100PureRawzcertificates not public · US37/100Peptide Crafterscertificates not public · US36/100Xcel Peptidescertificates not public · US36/100Research Peptidespublic certificates32/100Polaris Peptidescertificates not public · US26/100USA Peptidescertificates not public · US24/100Skye Peptidescertificates not public · US23/100Modern Aminoscertificates not public · US15/100

Frequently asked questions

Who sells LL-37?

34 suppliers in our index list LL-37: Licensed Peptides, Ascension Peptides, Paramount Peptides, Core Peptides, Pure Peptide Labs, BioLongevity Labs and others. The highest-scoring of them is Licensed Peptides (84/100).

What does LL-37 cost?

Across 39 listings the median is $14.60 per milligram, ranging from $7.16 to $22.50. The lowest listed price per milligram is Alpha Peptides's 5 mg listing at $35.79.

Which LL-37 listings have a public certificate?

3 certificates for LL-37 are on file from Peptide Warehouse, Liberty Peptides, Verified Peptides. Open each one and check the lot number against the vial label.

All listed materials are sold for laboratory research use only. Prices are the supplier's listed prices at the time of indexing, before any coupon; they change, so confirm in the cart. Price per milligram uses the stated mass on the listing.