Earwax is not true wax. Despite the name, it’s a complex mixture of fats, proteins, and dead skin cells that only resembles wax in texture. True waxes, like beeswax or paraffin, are simple compounds made of long-chain fatty acids bonded to fatty alcohols. Earwax is far messier: roughly 60 to 70 percent lipids (fats), 20 to 30 percent proteins (mostly keratin, the same stuff in your hair and nails), and a grab bag of other organic compounds including cholesterol, fatty acids, and shed skin cells.
What Earwax Is Made Of
The technical name for earwax is cerumen, and its ingredient list reads more like a skin secretion than anything you’d find in a candle. It contains fatty acids, alcohols, cholesterol and cholesterol precursors like squalene and lanosterol, wax esters, ceramides, and long-chain hydrocarbons. It also contains amino acids, immune proteins, and antimicrobial peptides. Dead skin cells make up roughly half the mass of earwax buildup, and those cells are coated in a layer of bound fats that hold everything together into that sticky, waxy-feeling substance.
So while earwax does contain some actual wax esters (one specific type of fat molecule), calling it “wax” is like calling a pizza “bread.” The wax esters are just one ingredient in a much more complex recipe.
How Your Ear Produces It
Earwax forms in the outer third of your ear canal, where two types of glands work together. Ceruminous glands, which are modified sweat glands, produce the watery, peptide-rich portion. Sebaceous glands contribute oily, fatty secretions. These gland products mix with shed skin cells on the surface of the canal to form cerumen.
The ceruminous glands have an interesting structure: a single layer of secretory cells is surrounded by muscle-like cells that essentially squeeze the secretions out into the ear canal, similar to how glands in your respiratory tract push out protective mucus. The comparison is apt because earwax serves a similar barrier function for your ears as mucus does for your airways.
Why Your Ears Make It
Earwax is a surprisingly effective defense system. It’s slightly acidic, which discourages bacteria and fungi from thriving in the warm, dark, moist environment of your ear canal. Beyond pH alone, it contains a range of antimicrobial agents: lysozyme (an enzyme that breaks down bacterial cell walls), immunoglobulins (antibodies), lactoferrin, and several antimicrobial peptides. Together, these substances create a chemical barrier that helps prevent ear infections.
It also acts as a physical barrier, trapping dust, dirt, and small debris before they can reach the eardrum. And the fats in earwax help waterproof the canal skin, preventing it from becoming soggy and vulnerable to irritation.
How It Leaves on Its Own
Your ear canal has a built-in conveyor belt. The skin lining the canal and eardrum undergoes a process called epithelial migration, where cells grow outward from the center of the eardrum toward the canal opening. This slow but constant movement carries earwax, along with any trapped debris, toward the outer ear where it eventually flakes off or falls out. Jaw movements from chewing and talking help nudge things along.
This self-cleaning system means that for most people, earwax takes care of itself. Sticking cotton swabs or other objects into the canal tends to push wax deeper, past the point where the glands and migration system operate, which is the most common cause of impaction.
Why Some People’s Earwax Looks Different
There are two genetically determined types of earwax: wet and dry. Wet earwax is sticky, honey-colored to dark brown, and dominant in people of European and African descent. Dry earwax is flaky, gray, and crumbly. A single gene called ABCC11 controls which type you produce. The dry variant is found in close to 100 percent of people from northern China and Korea, at intermediate frequencies in Japan, southern Asia, and the Americas, and is nearly absent in African populations.
This isn’t just a cosmetic difference. The same gene variant influences body odor and sweat composition, which is why the dry earwax gene is also associated with reduced underarm odor. It’s one of the clearest examples of a single genetic switch affecting multiple body traits at once.
When Buildup Becomes a Problem
About 1 in 10 children and 1 in 20 adults deal with enough earwax buildup to partially block the ear canal. This is more common in people who wear hearing aids or earbuds regularly, older adults (whose earwax tends to become drier and harder), and people with narrow or unusually shaped ear canals.
Symptoms of impaction include muffled hearing, a feeling of fullness in the ear, ringing, and occasionally dizziness. If you suspect a blockage, over-the-counter ear drops designed to soften wax (typically oil or peroxide-based) can help the natural migration process clear things out. Irrigation with warm water is another common approach. Ear candles, despite persistent popularity, have no evidence of effectiveness and carry real risks of burns and ear canal damage.
The American Academy of Otolaryngology’s clinical guidelines note that removal should be handled carefully in people with certain conditions, including prior ear surgery, recurring ear canal infections, or skin diseases affecting the ear canal. For everyone else, the general principle is simple: leave your ears alone unless they’re actually causing symptoms.