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LL-37 (10mg)
$70.00
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LL-37 is a human cathelicidin antimicrobial peptide that plays a key role in the innate immune system. Naturally produced by immune and epithelial cells, LL-37 helps defend against bacterial, viral, and fungal pathogens while also supporting immune regulation, inflammation control, and tissue repair.
Generic Name:
LL-37
Compound Information:
Molecular Weight: 4,493 g/mol
Formula: C205H340N60O53
Anabolic Rating: N/A
Androgenic Rating: N/A
Dosage (Male)
100-300 mcg per injection
Dosage (Female)
100-250 mcg per injection
Dosage Frequency
1-3 times per week
Dosage Type
Subcutaneous Injection
Active Half-Life
Approx. 1-2 hours
Chemical Name
H-Leu-Leu-Gly-Asp-Phe-Phe-Arg-Lys-Ser-Lys-Glu-Lys-Ile-Gly-Lys-Glu-Phe-Lys-Arg-Ile-Val-Gln-Arg-Ile-Lys-Asp-Phe-Leu-Arg-Asn-Leu-Val-Pro-Arg-Thr-Glu-Ser-OH
Stack With...
BPC-157 or TB-500
Post-Cycle Therapy
N/A
Immune Defence and Recovery Support
LL-37 is a naturally occurring antimicrobial peptide that plays a vital role in the body’s innate immune system. It helps defend against bacterial, viral, and fungal threats while supporting immune balance and recovery processes. By contributing to a stable immune response, LL-37 supports the body’s ability to heal and maintain resilience during periods of stress or inflammation.
Gut and Skin Barrier Health
LL-37 is closely associated with the health of epithelial barriers, including the skin and digestive tract. Research suggests it may help strengthen barrier integrity and support the body’s natural defences against environmental and microbial challenges. These properties make LL-37 of interest in recovery focused research involving gut health, skin repair, and inflammatory balance.
Our Vision
10+ Years of Peptide Expertise
At Pacific Peptieds our mission is to offer you access to the highest quality peptides, helping you achieve the physique and fitness goals you’ve always dreamed of. Each of our peptides is designed to enhance overall well-being, boost performance, and promote vitality. With over ten years of experience in peptide formulation, Pacific Peptides offers a wide range of products to help you reach your full potential.
Inflammation Regulation and Healing
Beyond antimicrobial activity, LL-37 is studied for its role in modulating inflammatory responses. It may help regulate cytokine activity and support the resolution of excessive inflammation, which is essential for effective tissue repair and recovery. This makes LL-37 relevant in research contexts involving wound healing and immune related inflammation.
Recovery Focused Immune Peptide
LL-37 is not an anabolic or performance enhancing compound. Instead, it is valued for its role in immune defence, tissue protection, and recovery support. Its function is centred on maintaining a healthy biological environment that allows the body’s natural healing processes to operate efficiently, particularly in research settings focused on immune resilience and long term tissue health.
Need Help with the Correct Peptide Mixture?
Our peptide mixing calculator takes the guesswork out of dosing, giving you an exact, easy-to-follow guide based on your vial, syringe, and target dosage. Whether you’re new to peptides or simply want to double-check your math, we’ve made it simple and straightforward.
Just enter your total syringe volume, the amount of peptide in your vial, how much water you’re adding, and your desired peptide dose. The calculator will do the rest — making sure you get accurate measurements for safe, consistent use every time.
For A MCG Dose, Draw Up To Tick Mark .
These ranges are general, research-use suggestions to help you prepare your peptides. This calculator and recommended doses are not medical advice. Start low, assess tolerance, and adjust cautiously.
Dosage (Male)
100-300 mcg per injection
Dosage (Female)
100-250 mcg per injection
Dosage Frequency
1-3 times per week
Dosage Type
Subcutaneous Injection
Our Guide to Intramuscular Injection
Gather Your Equipment
Before you begin your injection, make sure all your supplies are organized and within reach. You’ll need the injectable compound, a clean single-use syringe and needle, alcohol pads, a proper sharps disposal container, cotton balls or gauze for cleanup, and optionally, a mirror if you’re injecting yourself. Having everything set up in advance helps the process go smoothly without unnecessary interruptions. Prioritizing preparation and safety supports proper technique and long-term well-being.
Compound Extraction
After gathering all the required items, it’s time to draw the medication from the vial. Hold the vial upright and gently pull back on the plunger to fill the syringe with the exact amount prescribed. Make sure to follow your healthcare provider’s directions precisely. Once filled, tap the syringe lightly to bring any air bubbles to the top. Then, carefully press the plunger to expel the air, stopping when only the prescribed amount remains. Review the recommended injection depth before continuing.
Preparation Before Injection
To begin, select a clean, bright space where you can work comfortably. Wash your hands thoroughly with soap and water to prevent contamination. Then, prepare the injection site—this may be your thigh, glute, or upper arm, depending on your provider’s guidance. No matter the location, clean the area using an alcohol swab to eliminate oils, debris, or bacteria. Let the area air dry fully before proceeding to the injection.
Compound Administration
With the syringe ready, you can now give the injection. Grip the syringe securely and insert the needle into the chosen site at the correct depth. Gently pull back on the plunger—if blood enters the syringe, remove it and start again with a new needle. If no blood appears, push the plunger slowly and steadily to deliver the medication. A gradual injection helps maintain comfort and control. Once the dose is fully delivered, remove the needle carefully and dispose of it safely.
Incorporate LL-37 Into a Stack
LL-37 works alongside healing peptides such as BPC-157 or TB-500 due to their complementary roles in recovery and tissue repair. While LL-37 primarily supports immune defence, inflammation regulation, and barrier integrity, BPC-157 and TB-500 are more closely associated with tissue regeneration, angiogenesis, and musculoskeletal healing. When combined, LL-37 may help create a supportive immune and inflammatory environment that allows regenerative peptides like BPC-157 or TB-500 to function more effectively. This type of stacking is most often explored in contexts involving wound healing, soft tissue recovery, gut or skin repair, and post injury support, rather than performance or aesthetic enhancement. Stacking LL-37 with BPC-157 or TB-500 is typically approached conservatively, with careful attention to dosing and duration, as each peptide acts through distinct biological pathways.
Usage Guidelines For LL-37
LL-37 is typically administered via subcutaneous injection, with frequency determined by the specific research or recovery objective. Common protocols involve administration 1–3 times per week at low microgram doses, as LL-37 is biologically active at much smaller amounts than metabolic peptides. Injections are usually spaced evenly throughout the week to support immune modulation, tissue repair, and barrier integrity.
Timing is flexible and is not dependent on fasting or training schedules, as LL-37 does not influence energy metabolism or endurance. Consistent timing may help maintain stable immune and inflammatory responses over the course of a protocol. Reconstituted LL-37 should be stored at 2°C to 8°C (36°F–46°F) using bacteriostatic water and protected from light to preserve peptide stability.
Consult With a Healthcare Provider
Before considering the use of peptides, it’s important to speak with a licensed medical professional. They can assess your overall health, explain the potential benefits and risks, and provide tailored advice that fits your personal goals and medical history.
Choose Reputable, Quality Sources
To minimize the risk of contaminated or fake products, always source peptides from reputable vendors like Pacific Peptides. Stick to well-known suppliers who follow strict quality protocols and have earned a solid track record within the fitness or medical community.
Begin
Conservatively
When starting peptides, begin with the lowest dose that may offer results. Increase gradually only if necessary, paying close attention to how your body responds and watching for any unwanted effects along the way.
PRIORITISE RECOVERY & MONITORING
Peptide protocols should be supported by proper recovery and regular self monitoring. Prioritizing sleep, nutrition, hydration, and stress management helps maximize results while reducing the risk of unwanted effects. Allowing adequate time between cycles supports long term metabolic health and overall well being.
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