Cerumen (earwax) (None)

Cerumen matrix, commonly known as earwax, is a **complex mixture of lipids, proteins, keratin, water, cellular debris, and secretions from ceruminous and sebaceous glands of the ear canal**[3][5][7]. Its primary components include squalene, cholesterol and its esters, wax esters, fatty acids, triacylglycerols, ceramides, and keratins[5][6][7]. Cerumen serves biological functions such as **moisturizing the ear canal, trapping foreign particles, and providing an antimicrobial barrier**[8]. From a diagnostic perspective, **analysis of volatile and non-volatile metabolites in cerumen ("cerumenogram") has shown promise for non-invasive detection of specific metabolic alterations, notably in cancer and inflammatory diseases**[1][2][3]. However, the cerumen matrix is not a receptor, enzyme, transporter, or other classical molecular target; rather, it is a **biological sample/matrix** with diagnostic implications, not a therapeutic target.

Other names

EarwaxCeruminous secretion

None (not applicable)