Dandruff, a common scalp condition, ⁢can stem from a⁢ variety of factors. According to dermatologist Saedi, these⁣ include dry skin, excess oil production, ⁣skin sensitivity, and, most frequently, an overgrowth of the naturally occurring fungus ⁣ Malassezia⁤ globosa. Importantly,⁣ dandruff ‌isn’t limited⁤ to​ those with ⁢oily scalps; it can affect individuals with dry⁤ scalps as well.

It’s a⁤ common misunderstanding ⁣that Malassezia ​ is inherently harmful. In reality, it’s a normal component​ of the ⁤scalp’s ecosystem, playing ​a role in⁣ breaking down sebum – the scalp’s natural oil. However, this breakdown process generates oleic acid, a fatty acid that many individuals are sensitive⁤ to, triggering the characteristic flaking⁤ associated with dandruff.

Several lifestyle‍ and environmental factors can worsen dandruff. Dr. Kobets highlights stress (which elevates cortisol, increasing oil production and weakening the ⁣immune system), a diet high in processed ‍foods and ‍sugars⁢ (contributing to inflammation),⁤ sweating, and ⁣warmer temperatures as potential exacerbating influences. The yeast ​contributing to dandruff ‍thrives​ in​ these warm,moist environments.

Caspara emphasizes the importance of​ seeking ​professional medical advice⁤ if a scalp imbalance persists despite consistent routines. If you​ haven’t altered ⁤your environment, products, diet, or ​washing frequency, and ⁤the issue continues,‍ it could indicate an underlying health condition. It’s crucial to differentiate dandruff from a dry scalp, ⁢which⁣ presents as tightness and itchiness due‍ to a‍ loss of⁣ natural oils caused by harsh‍ products, ⁤dry weather, or indoor heating.