Peptide directory

Chonluten (T-34) is a Khavinson tripeptide bioregulator with the sequence Glu-Asp-Gly, originally derived from bronchial epithelial cell studies. The retrieved evidence is narrow and almost entirely in vitro, focused on monocyte/macrophage inflammatory signaling.

KPV is the tripeptide Lys-Pro-Val, a minimal active fragment from the C-terminus of alpha-MSH. It is one of the more interesting translational anti-inflammatory peptides in gastrointestinal research, but current evidence is overwhelmingly preclinical.

LL-37 is the only human cathelicidin antimicrobial peptide — an endogenous host-defense molecule that sits at the intersection of innate immunity, biofilm control, inflammation, and tissue repair. It has both protective and potentially pro-inflammatory effects, so its literature is unusually dual-sided.

Thymalin is a polypeptide extract from calf thymus tissue marketed in Russia and Belarus as an immunostimulant. It is a peptide complex rather than a single defined short peptide; not FDA or EMA approved.

Thymosin alpha-1 (thymalfasin / Zadaxin) is a synthetic 28-amino-acid peptide identical to the endogenous form. International monographs describe use in chronic hepatitis B and as an immunomodulator. It is NOT FDA-approved — the FDA's 2024 compounding briefing explicitly states no Tα1 drug products are approved in the U.S.

Vilon is a synthetic Lys-Glu thymic dipeptide from the Russian peptide-bioregulator literature, the same tradition that produced Thymalin and related compounds. The evidence base is much less standardized and less internationally regulated than for approved endocrine peptides.