Goals  ›  Immune
Immune

Peptides for Immune Support

3 peptidesUpdated July 2026
The most established immune peptide is Thymosin Alpha-1, used clinically in several countries as an immune modulator. LL-37 (the human cathelicidin) is studied for antimicrobial defense, and KPV for anti-inflammatory activity.

Thymosin Alpha-1 has genuine clinical use in some regions, but regulatory status varies and the others are largely preclinical. Immune modulation is not something to self-manage.

Peptides researched for this goal

Thymosin Alpha-1 Immune Support

An immune-modulating peptide used clinically in several countries.

LL-37 Immune Support

The human cathelicidin antimicrobial peptide studied for immune defense.

KPV Anti-Inflammatory

A short tripeptide fragment of α-MSH studied for anti-inflammatory effects.

Frequently asked questions

Thymosin Alpha-1 is the most established immune-modulating peptide and is used clinically in several countries, though regulatory status varies.

Thymosin Alpha-1 is approved or used clinically in some countries; LL-37 and KPV are research compounds. Use under medical supervision.

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This page is for educational purposes only and is not medical advice, a diagnosis, or a recommendation to use any compound. It contains no dosing or purchase information. Always consult a licensed healthcare professional before considering any peptide.