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Immune & Inflammatory

KPV

KPV (Lysine-Proline-Valine)

Research

A tiny anti-inflammatory fragment of a hormone your body already makes. Frequently paired with BPC-157 and TB-500 in recovery-focused peptide stacks.

LL-37

LL-37 (Cathelicidin Antimicrobial Peptide)

Research

A natural antibiotic-like peptide your own immune cells produce to fight off infection directly, while also helping recruit immune cells and support wound healing.

Thymalin

Thymalin (Thymic Polypeptide Complex)

Research Phase

A thymus-derived bioregulatory peptide complex from the same Russian research tradition as Epithalon, studied for restoring immune function in aging or immunocompromised patients.

Thymogen

Thymogen (Glu-Trp Dipeptide)

Research Phase

A minimal two-amino-acid synthetic peptide developed as a simplified alternative to thymus-extract immune peptides like Thymalin.

Thymosin Alpha-1

Thymosin Alpha-1

Approved (multiple countries)

An immune-boosting peptide approved in over 35 countries. Helps the body fight chronic viral infections like hepatitis.

VIP

Vasoactive Intestinal Peptide

Research Phase

A naturally occurring neuropeptide with wide-ranging anti-inflammatory and gut-regulating effects, studied in synthetic form for severe respiratory and inflammatory conditions.