GMP-Certified, ≥98% HPLC-Verified

LL-37

Name: LL-37
Brand: Peptide Direct

Wholesale Human Cathelicidin Antimicrobial Peptide. LL-37 is a 37-amino-acid antimicrobial peptide of the cathelicidin family, corresponding to the 134-170 segment of human cationic antimicrobial protein 18 (hCAP18). It is widely researched in immune, wound-healing, and wellness science.

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≥98% HPLC-VerifiedGMP & ISO 9001:2015 certifiedCOA with every batch

GMP · ISO · HACCPUK & Berlin manufacturingThird-party testedManufacturer direct since 2018

Compound specifications

LL-37 at a glance

Compound Name	LL-37
Classification	Cathelicidin-derived antimicrobial peptide
Peptide Type	Synthetic 37-amino-acid peptide
CAS Number	597562-32-8
Molecular Formula	C205H340N60O53
Molecular Weight	Approximately 4493.37 g/mol
Structure	37-amino-acid amphipathic peptide corresponding to the 134-170 segment of human cationic antimicrobial protein 18 (hCAP18)
Purity	≥98% (HPLC-verified, batch-by-batch)
Format	Lyophilised peptide powder, multi-dose research vials
Appearance	White to off-white lyophilised powder prior to reconstitution
Solubility	Reconstitute using bacteriostatic water or sterile laboratory-grade water

Ordering

Available Strengths

LL-37 is available wholesale in the following strength:

LL-37 5mg

Available for bulk ordering with flexible MOQs. Private label packaging and labelling is available for qualifying buyers — see our Private Label page for details. If you require additional strengths for your order, contact us to discuss availability.

Quality & documentation

Quality Assurance

Every batch of LL-37 supplied by Peptide Direct meets the same standard as our full compound range:

GMP certified manufacturing conditions
ISO 9001:2015 certified quality management
HPLC purity verification to ≥98%, batch-by-batch
Certificate of Analysis supplied with every order

View our full QA standards →

Wholesale

Wholesale Information

LL-37 is available through Peptide Direct for:

Wholesale peptide supply
International distribution
Commercial wellness partnerships
Private label solutions

View our wholesale terms →

Storage & handling

Storage Information

Store refrigerated at 2–8°C in a cool, dry environment away from direct light. For long-term storage prior to reconstitution, freezing conditions are recommended. Storage conditions are confirmed on the Certificate of Analysis supplied with each order.

Request a wholesale LL-37 quote

Tell us the strength and quantity you need. We reply within 24 hours with tiered pricing and a current batch COA on request. COAs, pricing and samples available — B2B enquiries only.

Frequently asked questions

What is LL-37?

LL-37 is a 37-amino-acid antimicrobial peptide of the cathelicidin family, corresponding to the 134-170 segment of human cationic antimicrobial protein 18 (hCAP18). It is widely researched in immune, wound-healing, and wellness science.

What purity does Peptide Direct's LL-37 meet?

All LL-37 supplied by Peptide Direct is verified by HPLC analysis to a minimum purity of ≥98% on a batch-by-batch basis, with a Certificate of Analysis supplied on every order.

What strengths are available?

LL-37 is available wholesale in 5mg, with flexible minimum order quantities for bulk buyers. Contact us if you require other strengths.

Can I get LL-37 under my own brand?

Yes. Private label packaging, vials, and labelling are available for qualifying wholesale buyers. See our Private Label page for details.

How should LL-37 be stored?

Store refrigerated at 2–8°C, away from direct light. For long-term storage, freezing conditions are recommended prior to reconstitution.

Is LL-37 manufactured under GMP conditions?

Yes. All LL-37 supplied by Peptide Direct is manufactured under GMP and ISO 9001:2015 certified conditions, the same standard applied across our full compound range.

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For research and laboratory purposes only. Not intended for human consumption, medical use, diagnosis, treatment, cure, or prevention of any disease. Products sold by Peptide Direct are intended exclusively for qualified research professionals and licensed institutions. Buyers are responsible for ensuring compliance with all applicable laws and regulations within their jurisdiction.