Everything you need to know about adherent dandruff

FALSE
Dandruff falls into two main categories: dry dandruff and greasy dandruff. Greasy dandruff (pityriasis steatoides) results in thick, oily, yellowish scales forming across the scalp, while dry dandruff (pityriasis capitis) are finer and lighter in texture. While dry dandruff falls easily from the scalp, greasy dandruff accumulates on top of the scalp, with flakes gradually piling up on top of one another, causing hair to appear greasy at the roots.

FALSE
While greasy dandruff (also known as adherent dandruff) results from an excess of oil production, dandruff can and does affect all hair types, lengths and textures, from oily to dry. Failing to wash out shampoo or other styling products can lead to dandruff, so if you’re noticing grey or whitish flakes when you brush or comb your hair, make sure to thoroughly rinse hair next time you shower.

FALSE
Dandruff can be caused by a number of factors, including hormones, diet, genetics, stress or reactions linked to chemicals and ingredients. As mentioned above, overwashing your hair can cause dry dandruff if you fail to rinse properly. Meanwhile, greasy dandruff results from excess sebum produced by the scalp - so can occur regardless of your hair-washing habits. If you’re concerned about the cleanliness of your hair, scalp exfoliation can help remove excess sebum and skin cells for a squeaky-clean scalp that’s better primed for anti-dandruff treatments.