Tiny Demodex Mites Are Breeding on Your Face – Here’s What You Should Know About Them

Look at these pore souls.

Dr. Scott Walter, a board-certified dermatologist in Denver, is shedding light on Demodex — minuscule eight-legged mites that dwell within the hair follicles and oil glands on our face, chest, and neck.

Demodex mites are microscopic creatures that reside on human skin, especially in areas like the face. Dr. Walter, who frequently shares dermatological insights on TikTok, refers to them as “greedy parasites.”

“If you haven’t heard of them, Demodex are teeny mites living in your pores and oil glands. At night, they come out to feast on dead skin and reproduce,” Walter explained in a recent video. “They’re even sensitive to light thanks to primitive eyes, so they wait for darkness to move around freely.”

Scientific studies suggest that nearly all adults carry these mites, though they are more prevalent among older individuals. In contrast, children under 5 have fewer, but mites can still be transferred through direct contact, such as sharing eyebrow tools, makeup brushes, and tweezers.

There are two primary species that live on humans:

• Demodex folliculorum, about 0.3 millimeters in size, typically found in facial hair follicles, especially near the eyes and brows.

• Demodex brevis, slightly smaller, hides in the sebaceous (oil) glands.

To show how easily mites are detected, Dr. Walter placed clear tape on his forehead and cheeks overnight and then examined the samples under a microscope. He discovered a well-fed mite, joking that:

“Here’s a weird fact — Demodex don’t defecate because they lack an exit point. So they just keep eating.”

These mites live for about two weeks. They lay eggs in follicles or glands, which hatch in 3–4 days. It takes around a week for them to mature, and once they die, their bodies break down right where they lived.

Most people remain unaware of Demodex, experiencing no symptoms. However, the mites have been linked to conditions like rosacea, acne, and dermatitis. They may also contribute to eye issues by affecting the eyelids and lashes.

Mark Sandeman, an honorary professor from Federation University Australia, suggests consulting a doctor if you’re dealing with eyelid irritation. Treatments like medicated washes can help reduce the number of mites, though eradicating them entirely is nearly impossible.

As he put it: “Managing symptoms often means keeping mite numbers low with proper care, not eliminating them altogether.”