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

{{ product.price_format }}

Guaranteed Fast Delivery!

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.

{{ value.name }}

Product assurances

Contact online support for real-time help with product selection, bulk orders, shipping, or payment.

Need help? Contact online support.

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.

Is payment safe?

Yes — for new customers, we recommend using Alibaba escrow for full protection.
We also have many repeat customers and a large active community.

Do you have customer reviews or a community?

Yes — we have active Discord, WhatsApp, and Telegram groups where users share real experiences and testing results.
Our Telegram group is the most active, with over 6,000 members. You’re welcome to join and see feedback from others.

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?

* Global shipping: 8–12 days (door-to-door, customs & taxes included)
* US warehouse: 3–5 days delivery (USA only)

Do I need to pay customs or taxes?

No — our shipping includes customs clearance and taxes.
You won’t need to handle anything extra.

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?

Orders are usually shipped within 48 hours after payment confirmation.
Tracking information will be provided once the order is dispatched.

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

Worldwide delivery in 8–15 days with air dispatch on business days.

Tracking provided on every order.

After-Sales & Risk Coverage

Invalid test results → Full refund.

Customs seizure → Immediate reshipment.

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

Contact our online support for real-time communication about products, orders, shipping, payment, or bulk supply.

WhatsApp Real-time online support Telegram Real-time online support Email erppeptide@gmail.com

Online customer service Replies during business hours