Educational Wellness Information Only
This platform provides peer-reviewed research summaries and educational content about peptides for wellness and optimization purposes. Nothing on this site is intended as medical advice, diagnosis, or treatment. We do not claim any peptide can diagnose, treat, cure, or prevent any disease. Always consult a licensed healthcare provider before beginning any wellness protocol.
Statements on this site have not been evaluated by the FDA. Compounded preparations are subject to applicable state and federal regulations. Availability and eligibility vary.
LL-37 vs Thymalin
An educational, source-based comparison of LL-37 and Thymalin — how each peptide works, what it's researched for, and what to know before going deeper.
Human cathelicidin peptide with antimicrobial and immune-modulating activity.
The only human cathelicidin antimicrobial peptide. Research demonstrates broad antimicrobial activity against bacteria, viruses, and fungi, plus immunomodulatory effects on neutrophils, macrophages, and wound healing.
- Chronic biofilm infections
- Wound healing and dermatology
- Innate immune modulation
- • Not FDA-approved.
- • Pro-inflammatory effects possible at higher doses.
A polypeptide complex extracted from calf thymus, studied as an immune bioregulator. Research suggests restoration of T-cell function and thymic activity in aged and immunocompromised cohorts.
- Immunosenescence
- Recovery from infection in elderly cohorts
- Adjunct in chronic inflammatory conditions
- • Approved in Russia; not FDA-approved.
- • Mixture composition is not fully characterized.
Trial-evidence rating
Educational grade reflecting how many peer-reviewed studies and FDA actions we cite for each peptide. Not a clinical recommendation.
Early-stage research; conclusions are tentative.
Early-stage research; conclusions are tentative.
Study-by-study comparison
| Peptide | Study | Source | Year | Summary |
|---|---|---|---|---|
| LL-37 | LL-37: a multifunctional host-defense peptide | Frontiers in Immunology | 2020 | Comprehensive review of antimicrobial and immunomodulatory roles. |
| Thymalin | Thymalin in geriatric patients: long-term outcomes | Advances in Gerontology | 2014 | Multi-year follow-up reported reduced morbidity and improved immune markers. |
Side-effect & safety grid
- Not FDA-approved.
- Pro-inflammatory effects possible at higher doses.
- Approved in Russia; not FDA-approved.
- Mixture composition is not fully characterized.
Educational summary of considerations reported in research literature — not a complete list of adverse events. Discuss with a licensed clinician before any use.
LL-37 vs Thymalin — Key differences
- Class: LL-37 is classified as Immune · Antimicrobial, while Thymalin is Immune · Bioregulator.
- Primary research focus: LL-37 — chronic biofilm infections; Thymalin — immunosenescence.
- Tag: Immune · Antimicrobial vs Immune · Longevity.