8 peptides researched for immune support.
Immune-supporting peptides modulate the immune system. either by enhancing its ability to fight infections and tumors, or by helping regulate overactive immune responses. These peptides work through thymic function, antimicrobial activity, and immune cell signaling rather than broadly stimulating or suppressing immunity.
Thymosin Alpha-1 is the most clinically established immune peptide, approved in over 30 countries (though not the US) for hepatitis B and C, and used as an adjunct in cancer immunotherapy. It enhances T-cell function and dendritic cell maturation. LL-37 is a human cathelicidin. a natural antimicrobial peptide that directly kills bacteria, viruses, and fungi while also modulating inflammatory responses. It represents the innate immune system's first line of defense. BPC-157 also appears in this category due to its anti-inflammatory effects, though its primary reputation is in tissue healing.