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Research peptide · 5 mg / vial
4.8· 26 reviewsLL-37 is supplied as a lyophilized research peptide at ≥99% HPLC purity with a batch-specific Certificate of Analysis (HPLC + mass spec). Molecular formula C205H340N60O53, MW 4493.3 g/mol. For laboratory research use only — not for human or veterinary use.
Research use only. For laboratory research use only. Not for human consumption. By purchasing you affirm you are a qualified researcher acquiring this material for lawful laboratory research.
30-Day Reship Guarantee. If a vial arrives damaged or a lot doesn’t match its COA, we reship or refund — no questions asked.
LL-37
$120.00
Don’t forget
Bac.water — $12.00
Required to reconstitute a lyophilized peptide. Most orders add one.
Total for 3 items
$194.75$205.00
5% volume discount applied
Good to know
No slogans, no “trust us.” Here is the exact path every PepBiotics vial takes before its lot number ever reaches your label.
Solid-phase synthesis, then lyophilized to a stable powder. Each production run becomes a single traceable lot.
Reverse-phase HPLC quantifies purity and resolves impurities — the headline percentage on every certificate.
ESI mass spectrometry confirms the molecular weight matches the target sequence. No guessing what's in the vial.
In the literature
Studied pathways reported in preclinical and in-vitro research — not health claims or intended uses.
Investigated in preclinical models for effects on connective-tissue, muscle, and gastrointestinal repair.
Studied in the research literature for modulation of vascular signaling and cytoprotective effects under experimental stress.
All products are intended strictly for laboratory research use only (RUO). They are not intended for human or veterinary use, and are not drugs, foods, cosmetics, or supplements. Not for diagnostic, therapeutic, or consumptive use of any kind.
Data sheet
2.50 mg/mL
Concentration
25.0 µg
Per unit (U-100)
0.100 mL
Draw volume
10.0
Syringe units
Planning aid for laboratory research only. Enter the net peptide content from the LL-37 Certificate of Analysis for accurate concentrations. Not a recommendation for use in humans or animals.
For laboratory research use only. Reconstitute with bacteriostatic water or 0.9% sodium chloride under aseptic technique. Add diluent slowly against the vial wall and swirl — do not shake. Store the reconstituted solution at 2–8 °C and use within the study window. Not for injection into humans or animals.
Lab results
Every lot links to its full Certificate of Analysis from Aegis Bioanalytical Laboratories, an independent ISO/IEC 17025-accredited lab — each with a Report ID you can verify.
Lot PBL-24254
Mfg Jun 18, 2026 · Exp Jun 17, 2028 · Aegis Bioanalytical Laboratories
Lot PBL-24253
Mfg Mar 10, 2026 · Exp Mar 9, 2028 · Aegis Bioanalytical Laboratories
Questions
Reviews
Keep exploring
Every result is signed by Aegis Bioanalytical Laboratories and published to the vault — searchable by the lot number on your label.
CAS number, sequence, molecular weight, HPLC purity, storage and reconstitution — every value on this page, in one branded PDF for your lab records.
Download spec sheet (PDF)4.8
Based on 26 reviews
No issues with the material itself. The label print was slightly faint on one vial but still fully legible.
Third order across two different lots and both COAs line up. Consistency matters more than a headline purity number, and they deliver it.
Third order across two different lots and both COAs line up. Consistency matters more than a headline purity number, and they deliver it.
No issues with the material itself. The label print was slightly faint on one vial but still fully legible.
Packaging was discreet and protective, labels crisp, and the lot resolved to a real report in the COA vault. Zero complaints.
Ran our own analytical HPLC on the lot and it agreed with the published COA within tolerance. Identity confirmed by MS. This is what a research supplier should be.
Ordered the 5-vial bundle — per-vial pricing is fair and the volume discount applied exactly as shown. Smooth checkout.
Dispatched same day, arrived sealed with legible lot numbers. The batch report was already in the vault before the package landed.
Ordered the 5-vial bundle — per-vial pricing is fair and the volume discount applied exactly as shown. Smooth checkout.
Ran our own analytical HPLC on the lot and it agreed with the published COA within tolerance. Identity confirmed by MS. This is what a research supplier should be.
Purity and identity were on point. Only nitpick is the vial is a touch small for larger diluent volumes — minor.
Ordered the 5-vial bundle — per-vial pricing is fair and the volume discount applied exactly as shown. Smooth checkout.
Dispatched same day, arrived sealed with legible lot numbers. The batch report was already in the vault before the package landed.
Third order across two different lots and both COAs line up. Consistency matters more than a headline purity number, and they deliver it.
Ordered the 5-vial bundle — per-vial pricing is fair and the volume discount applied exactly as shown. Smooth checkout.
No issues with the material itself. The label print was slightly faint on one vial but still fully legible.
Ran our own analytical HPLC on the lot and it agreed with the published COA within tolerance. Identity confirmed by MS. This is what a research supplier should be.
Being able to look up the certificate by lot number before ordering is the whole reason we switched. Documentation is impeccable.
Ordered the 5-vial bundle — per-vial pricing is fair and the volume discount applied exactly as shown. Smooth checkout.
Lyophilized cake dissolved fully in bacteriostatic water with no cloudiness or residue. Net peptide content on the COA let me hit exact working concentrations.
No issues with the material itself. The label print was slightly faint on one vial but still fully legible.
Packaging was discreet and protective, labels crisp, and the lot resolved to a real report in the COA vault. Zero complaints.
Ordered the 5-vial bundle — per-vial pricing is fair and the volume discount applied exactly as shown. Smooth checkout.
Ordered the 5-vial bundle — per-vial pricing is fair and the volume discount applied exactly as shown. Smooth checkout.
