For some reason, we are all obsessed with our hair, male or female notwithstanding! An average Indian adult has about 5 million hairs on their body, and about 110,000 on their heads. Females prefer to get rid of their bodily hairs, but as far as the head hair is concerned, it’s never thick enough, straight/curly enough, perfect enough…etc!
Dandruff is another chronic hair problem that most people are obsessed about and is one of the commonest hair problems faced by both genders. It also affects the social and self-esteem aspects of a person, inferring the need for both psychological as well as physiological treatment. Only a good dermatologist can provide such help. Luckily dandruff doesn’t have any relation to genetic make-up like other hair problems such as thinning, balding or graying hair. Dandruff has been associated with the onset of puberty, peaking by the twenties and then gradually tapering off.
Dandruff or seborrheic dermatitis is embarrassingly easy to spot and presents as white, oily flakes of dead skin cells that appear scattered among the hair as well as on the shoulders. It’s known to cause itching as well as leading to severe hair loss, if left untreated. In babies and infants, dandruff appears as a frightful-looking ‘cradle cap’ that is usually self-limiting, but still sends the parents running in a tizzy to the skin specialist.
Though there are many theories proposed on what causes dandruff, it’s now believed that the yeast-like fungi called malassezia is the main culprit. It feeds on the oil secreted by the skin and causes the dead skin cells to slough off; the natural oils then clump these dead cells together to form whitish flakes. Other factors that lead to skin flaking include a dry skin, the use of harsh hair products or an increased sensitivity to them, yeast overgrowth and skin conditions such as psoriasis, seborrheic dermatitis or eczema.
Treatment of dandruff can usually be taken care of by common over-the-counter remedies like broad spectrum anti-fungal shampoos which contain ingredients like zinc pyrithione, selenium sulphide or ketoconazole which target and limit the growth of fungus. Shampoos containing tar are also effective in controlling flaking by slowing down cell growth and death as well as by removing the already dead skin cells. Shampoos containing salicylic acid are effective in scrubbing off dead scalp cells, but they tend to dry off the skin, so a proper moisturizer is needed. If frequent use of these shampoos for two to three weeks doesn’t help, then it’s time to see a dermatologist who knows more about hairy issues!
Though dandruff cannot be cured, the good news is that it can be easily controlled along with a few changes in hygiene habits as well as switching to gentler hair products. Frequent washing of hair with a gentle shampoo reduces oiliness of the scalp and build-up of dead skin cells, thereby controlling mild cases of dandruff easily.