Your Hairbrush May Be Dirtier Than a Toilet Seat, Experts Warn

Published on April 3, 2026

Hairbrushes can be a hidden source of bacteria, often accumulating more harmful microorganisms than a toilet seat, according to experts. Regular cleaning is essential to maintain hygiene, as neglecting this task can lead to unhealthy buildups.

“If you do not wash your hairbrush at least once a week, a huge number of bacteria, sebum residue, dust, and dead skin particles accumulate on its bristles. According to research, in such a short time up to a million microorganisms can form on the surface of a hairbrush, including bacteria that cause inflammation and acne,” said trichologist and dermatovenereologist Yulia Markova in an interview with Life.ru.

Markova further explained that sebum, produced glands, acts as a nutrient medium for bacteria. When this oily substance mixes with dust and dead skin cells, it forms clumps that can clog pores. The result is not just a dirty hairbrush but an environment ripe for various skin issues. “Indeed, a hairbrush can become dirtier than a toilet seat — this is a fair statement,” she noted.

The alarming reality underscores the importance of personal hygiene habits that extend beyond typical cleaning routines. With regular usage, hairbrushes can harbor a variety of bacteria and allergens that could potentially lead to skincare problems if left unchecked.

To mitigate these risks, experts recommend cleaning hairbrushes at least once a week, utilizing simple cleaning solutions and techniques that effectively remove hair, residue, and built-up dirt. In doing so, individuals can maintain healthier hair and scalp conditions while ensuring that their grooming tools do not contribute to skin irritations or other health concerns.

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