LL-37 – 10mg
$69.99
LL-37 is a naturally occurring human antimicrobial peptide that plays a key role in the body’s first line of immune defense. It is widely studied for its in- volvement in immune signaling, barrier protection, and regulation of in- flammatory responses that help maintain cellular balance and resilience. Rather than acting solely as an antimicrobial agent, LL-37 functions as a cellular signaling molecule, influencing how immune cells respond to stress, injury, and environmental challenges. Through these signaling pathways, LL-37 is associated with processes related to tissue repair, recov- ery, and controlled immune activity.
Due to its broad biological relevance, LL-37 has become a compound of in- terest in immune research, regenerative studies, and host-defense-fo- cused research models where barrier integrity and immune balance are critical.
As part of our research-grade peptide collection, LL-37 is COA verified and third-party tested to confirm identity, purity, and concentration. It is trusted by biohackers and researchers seeking high-quality immune and recovery-focused peptide compounds.
Dosing Instructions
- Recommended Male Dosage: 100-500 mcg per day
- Recommended Female Dosage: 50-400 mcg per day
- Minimum/Maximum Cycle Length: 2–4 months
- Suggested Timing: Administer subcutaneously once daily at any time of day.
- LEARN MORE ABOUT LL-37
Product Specifications
Dosage (Male)
100-500 mcg per day
Dosage (Female)
50-400 mcg per day
Anabolic Rating
N/A — no anabolic or hormonal activity
Androgenic Rating
N/A — does not affect testosterone or androgen receptors
Active Half-Life
Approximately 5-15 minutes
Chemical Name
Human Cathelicidin Antimicrobial Peptide (LL-37)
Stack With...
Selank, Semax, Cerebrolysin, DSIP, NAD+, BPC-157, TB-500, GHK-Cu, CJC-1295, Ipamorelin, MK-677, Testosterone, Deca, Anavar
Post-Cycle Therapy
Not required — LL-37 is non-hormonal and safe for extended use.
Mixing Instructions for LL-37 10mg
- 1. Draw 2cc Bacteriostatic Water USP from vial.
- 2. Inject the Bacteriostatic Water into LL-37.
- 3. Gently swirl the vial around until the solution is completely clear. (Note: Do NOT shake - LL-37 is a delicate peptide and can lose potency if agitated.)
- 4. Once completed, this will provide a concentration of 10 mg per 2 cc and 500 mcg per 10 units on a 100 IU insulin syringe. Note: 100 units equals 5,000 mcg, and 200 units equals the full 10,000 mcg vial.
- 5. The most commonly recommended injection sites for LL-37 are the lower abdomen or outer thigh, where subcutaneous tissue is more abundant. Rotate injection sites to minimize irritation.
- 6. Note: Once LL-37 is reconstituted, it must be refrigerated and used within 30-45 days.
What You'll Need to Get Started
Bacteriostatic Water
for Constitution of Peptides
1cc/100 Unit Insulin Needles
for Constitution of Peptides
8mm Tip Length
for Subcutaneous or Intramuscular Injection
Sterile Alcohol Wipes
for Subcutaneous or Intramuscular Injection
Best Stacks for LL-37 10mg
LL-37 is often grouped with compounds that support immune function, tissue repair, and cellular recovery in both research and wellness-focused applications.
For enhancing tissue integrity and regenerative signaling, LL-37 is frequently paired with BPC-157, TB-500, or GHK-Cu, all of which are studied for their roles in cellular repair and structural support.
To promote broader cellular resilience and metabolic balance, LL-37 is commonly referenced alongside NAD+, which helps maintain redox balance and cellular energy metabolism. Peptides such as CJC-1295 or Ipamorelin may also be included in research on recovery signaling and systemic support.
Neuro-supportive peptides like Semax and Selank are sometimes combined with LL-37 in studies focused on stress adaptation and cognitive resilience.
Innate Immune Defense & Protection
Supports the body's first line of immune defense by enhancing an- timicrobial activity and strengthening natural protective mechanisms.
Inflammation Balance & Immune Signaling
Helps regulate inflammatory responses through immune signaling pathways, supporting balance rather than overstimulation.
Tissue Repair & Recovery
Associated with cellular processes involved in tissue repair, recovery, and regeneration following stress or damage.
Barrier Integrity & Cellular Resilience
Supports epithelial and cellular barrier integrity, helping tissues re- main resilient under physiological and environmental stress.
Potential Side Effects
LL-37 is described in research literature as a naturally occurring antimicrobial peptide involved in immune signaling and barrier defense pathways. Some research observations note the potential for mild localized irritation or sensitivity depending on exposure conditions. Individual responses may vary, LL-37 does not interact with hormonal systems and does not require post-cycle therapy.
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