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LL-37

Intended Use:
LL-37 is intended for research purposes only. It is commonly studied in antimicrobial, immune, and tissue repair models.

Storage:
Store in a cool, dry place away from light. After reconstitution, keep refrigerated at 2–8°C.

Solubility:
Reconstitute with bacteriostatic water (BAC water) for optimal stability.

Vial Size:
Standard 3ml vial (can hold up to 3ml BAC water).

Shelf Life:

  • Lyophilized: Stable up to 24 months
  • Reconstituted: Recommended use within 4–6 weeks

 

Handling:
Use sterile techniques during preparation and handling.

Antimicrobial Activity
LL-37 has demonstrated broad-spectrum antimicrobial effects against bacteria, viruses, and fungi by disrupting microbial membranes.

Wound Healing & Tissue Repair
Studies show LL-37 promotes angiogenesis (formation of new blood vessels) and accelerates tissue regeneration in damaged areas.

Immune System Modulation
LL-37 plays a dual role in immune regulation—enhancing defense against pathogens while preventing excessive inflammatory responses.

 

Skin & Barrier Function Research
LL-37 is widely studied in dermatological models for its role in maintaining skin barrier integrity and responding to infection or injury.

LL-37 works as part of the body’s innate immune defense system.

Its main actions include:

 

  • Disrupting microbial membranes, leading to pathogen destruction
  • Modulating immune signaling, balancing inflammation
  • Promoting cell migration and angiogenesis, aiding tissue repair
  • Enhancing barrier protection in skin and epithelial tissues
  • BAC Water Sold Separately
  • Syringes Not Included
  • Peptides sold in powdered form

LL-37

Ships from China warehouse
$130.00 USD
Review warehouse and shipping details

Shipping estimate for one unit of the default specification to the United States: $50.00 USD. Final shipping depends on your cart and destination at checkout.

LL-37 is a naturally occurring antimicrobial peptide belonging to the cathelicidin family. It plays a key role in innate immunity and is widely studied for its ability to combat pathogens, regulate inflammation, and support tissue repair. In research settings, LL-37 is often explored in models related to infection control, wound healing, and immune defense.

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Product assurances

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Questions & Answers

Key answers before shipping, dispatch, and after-sales details.

Are your peptides real and authentic?
Yes — we are a factory-direct supplier with stable production and large inventory.
All products are manufactured under strict quality standards, and COAs (Certificates of Analysis) are available for verification.
Do you have customer reviews or a community?
You can speak freely in our Telegram, WhatsApp and Discord communities, read customer feedback and view COAs shared by members who arrange their own testing. Compare the product, specification and batch shown on each report.
What if there is a problem with my order?
If anything goes wrong, please contact us directly.
We always do our best to provide a fair and reasonable solution for our customers.
Why are your prices lower than other companies?
Because we are factory direct — no middlemen involved.
With large-scale production, we are able to offer more competitive pricing.
Do you offer bulk discounts?
Yes — we offer better pricing for bulk orders.
Please contact us with your product list, and we’ll provide you with the best quote.
What payment methods do you accept?
We accept:

* USDT / USDC / BTC / ETH
* Alipay (please contact customer support to place the order)
How long does shipping take?
U.S. warehouse orders typically arrive in 2–5 days, with overnight delivery available. International delivery from China typically takes 8–12 days. Check the available method and destination coverage at checkout.
Do I need to pay customs or taxes?
International door-to-door delivery from China includes customs clearance and taxes, with delivery to most countries. U.S. warehouse orders ship domestically within the U.S. Check destination coverage and the available method at checkout.
Do you ship to my country?
Yes — we ship worldwide.
If you're unsure about your location, feel free to contact us and we’ll confirm for you.
When will my order be shipped?
U.S. warehouse orders are dispatched within 24 hours with tracking. China warehouse orders are dispatched within 48 hours with tracking. Contact support for the status of your specific order.
Why is my tracking not updating?
Tracking information may take 1–3 days to activate after shipment.
This is normal — once it updates, you’ll be able to see the full tracking progress.
How should peptides be stored?
Lyophilized (powder) peptides can be stored at room temperature before mixing.
After reconstitution, they should be refrigerated (2–8°C) and used within 4–6 weeks.
Unmixed (lyophilized) peptides can remain stable for up to 24 months when stored properly.

Shipping & Dispatch

U.S. delivery: 2–5 days, with overnight delivery available. International delivery from China: 8–12 days, with customs clearance and taxes included.

Dispatch and tracking: within 24 hours from the U.S.; within 48 hours from China.

After-Sales & Risk Coverage

Product quality problems are refunded. A failed quality test means a direct refund.

Support & Communication

Dedicated support team with clear pre- and post-payment updates.

Brazil orders require CPF/CNPJ for local tax handling.

Online support Real-time help for products, shipping, payment, and bulk orders

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