LL-37
Antimicrobial peptide
An antimicrobial peptide with strong immune relevance and a natural bridge into healing and repair questions.
How It Works
LL-37 is part of the innate immune response and is discussed for antimicrobial activity as well as broader immune-modulating effects.
Practical Information
injection
Injectable LL-37 is usually framed as the higher-scrutiny systemic format, where readers care most about sourcing, tolerance, and evidence limits.
topical
Topical LL-37 is usually discussed for localized skin and repair questions, where practical use is narrower and still lightly standardized.
Related Articles
See all 2 articles →LL-37 Review: Why Its Immune Story Still Feels Unusually Interesting
LL-37 is one of the more intriguing longevity-and-immune-support peptides because it is already part of your biology and keeps gaining a sharper mechanistic story. This review explains why it still stands out, what the newer research actually adds, and where the experimental boundary still matters.
5 min read
LL-37 Just Got a New Immune-Activation Angle
LL-37 now has a sharper immune story: a 2025 paper links it to cGAMP transport, STING signaling, and interferon-based antiviral activity. That makes the peptide easier to understand in longevity circles, even if the practical evidence is still early.
4 min read