Cheapest LL-37 prices: best $/mg after codes
Healing & RecoveryAlso known as: Cathelicidin
The human antimicrobial peptide, studied in biofilm and immune-defense research.
📖 New to LL-37? Read the full guide →Cheapest LL-37 right now
$31.20 at Purus Peptides
Best value is $4.14/mg at Valor Peptides. Best tested is LabSourced Peptides at $11.73/mg (7/7 checks). Prices updated September 24, 2026.
Cheapest by size
after code peptidepub
| Vendor | Testing How grades work | Size | Price | $/unit | Deal |
|---|---|---|---|---|---|
Valor PeptidesBest value | 5/7 tested | 10 mg | $41.39$45.99 after code PEPTIDEPUB | $4.14/mg | |
Ascension Peptides USA | 6/7 tested | 10 mg | $44.50$89 after code PEPTIDEPUB | $4.45/mg | |
Purus Peptides USA | 4/7 tested | 5 mg | $31.20$39 after code peptidepub | $6.24/mg | |
EZ Peptides | 3/7 tested | 10 mg | $70.20$78 after code PEPTIDEPUB | $7.02/mg | |
AMP (Ameano Peptides) | 2/7 tested | 10 mg | $72$80 after code PEPTIDEPUB | $7.20/mg | |
Main Peptides | 3/7 tested | 5 mg | $58.49$64.99 after code PEPTIDEPUB | $11.70/mg | |
LabSourced PeptidesBest tested USA | 7/7 tested | 5 mg | $58.65$69 after code peptidepub | $11.73/mg | |
World Wide Peptides | 5/7 tested | 5 mg | $196.20$218 after code PEPTIDEPUB | $39.24/mg |
Prices are for research materials sold for laboratory use only. PeptidePub may earn a commission from vendor links or codes at no cost to you. This does not affect testing grades or rankings. See our methodology. Best value is the lowest $/mg among vendors with verifiable published testing; Best tested is the vendor passing the most of our 7 testing checks.
Which size should I buy?
Bigger vials cost less per mg. Right now the cheapest 10 mg option is $4.14/mg, about 34% less per mg than the cheapest 5 mg option at $6.24/mg.
The saving only counts if you can use the vial within its storage window. Check the handling section of the guide before choosing a larger vial. See handling and storage.
Smaller vials cost more per mg but waste less if a vial sits open past its window. Filter to 5 mg and Filter to 10 mg.
Watch LL-37 prices
Today's best is $4.14/mg. We'll email you when a tested vendor beats it, a discount code changes, or new lab results come in. No spam — only real changes.
Cheapest LL-37 price FAQ
What's the cheapest LL-37?
The cheapest LL-37 right now is $4.14/mg at Valor Peptides for the 10 mg option, after code PEPTIDEPUB.
How is LL-37 price per mg calculated?
PeptidePub normalizes each vial by dividing the effective checkout price by the listed size in mg. That lets different vial sizes sit in one cheapest-first comparison.
Are discount codes included in these prices?
Yes. When a vendor has a confirmed code percent in the catalog, PeptidePub applies that discount before calculating effective price and effective price per unit. Codes without a confirmed percent are shown, but they are not used to lower the calculated price.
How often are prices updated?
The catalog is refreshed daily from vendor data sweeps, and the page reflects the current catalog values at build time. When vendor pricing or codes change, the comparison and cheapest-offer answer update from the same source data.
Which size should I buy?
Bigger vials cost less per mg. Right now the cheapest 10 mg option is $4.14/mg, about 34% less per mg than the cheapest 5 mg option at $6.24/mg. The saving only counts if you can use the vial within its storage window.
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