Peptide therapy Immune

LL-37

What it is and what people take it for, in plain language.

Updated October 2026Further reading

What is LL-37?

The human body's own antimicrobial peptide, part of the innate immune system.

What do people take LL-37 for?

Infections, biofilms, inflammation.

Should I talk to a physician about LL-37?

If you are considering it, or already using it, a physician can look at your history, your labs and your goals, and at what else might explain what you are hoping to change. At Aether Medicine in King of Prussia, near Philadelphia, or by video for patients in Pennsylvania.

Or call 484-806-1101

Further reading

  1. Lande R, et al. Plasmacytoid dendritic cells sense self-DNA coupled with antimicrobial peptide. Nature. 2007. pubmed.ncbi.nlm.nih.gov/17873860/
  2. Grönberg A, et al. Treatment with LL-37 is safe and effective in enhancing healing of hard-to-heal venous leg ulcers: a randomized, placebo-controlled clinical trial. Wound Repair Regen. 2014. pubmed.ncbi.nlm.nih.gov/25041740/
  3. Mahlapuu M, et al. Evaluation of LL-37 in healing of hard-to-heal venous leg ulcers: A multicentric prospective randomized placebo-controlled clinical trial. Wound Repair Regen. 2021. pubmed.ncbi.nlm.nih.gov/34687253/
  4. Intratumoral LL37 in melanoma. ClinicalTrials.gov NCT02225366. clinicaltrials.gov/study/NCT02225366

Educational information only, not medical advice. Reading this page does not create a physician-patient relationship.

Curious about LL-37?Talk to a physician about your goals. No payment online.