Scalp care

Dandruff and oily scalp: causes and care

Dandruff and seborrheic dermatitis sit on one spectrum. Learn the roles of oil, Malassezia yeast and sensitivity, plus practical care in a humid climate.

Short answerDandruff is a mild, scalp-only form of the same spectrum as seborrheic dermatitis: itchy flaking without visible inflammation. It involves sebum (scalp oil), Malassezia yeast on the skin surface and individual sensitivity. Regular cleansing and targeted anti-dandruff ingredients usually help, and persistent redness or scaling should be seen by a doctor.

One condition, two ends of a spectrum

Researchers describe dandruff and seborrheic dermatitis as a continuous spectrum. Dandruff is restricted to the scalp with itchy, flaking skin and no visible inflammation; seborrheic dermatitis can spread to other oily areas and includes redness and scaling [1].

Why it happens

Three factors interact: sebaceous (oil) secretions, fungal colonisation of the skin surface, mainly Malassezia, and individual susceptibility [1]. Heat, humidity, sweat and infrequent washing can tip the balance, which is why many people in Malaysia notice flare-ups.

What helps

Wash often enough to control oil, and rotate in an anti-dandruff shampoo containing ingredients such as ketoconazole, zinc pyrithione or selenium sulfide, as commonly recommended [1]. Rinse well, dry the scalp properly and avoid scratching.

Scalp health and hair

A flaky, inflamed scalp is uncomfortable and makes hair look dull. In Folli-Heal Plus, the first phase (Purify & Prepare, steps 1 to 6) includes the Signature Scalp Detox in step 2 and the Luxe Hair & Scalp Purification wash in step 6, to clear oil and build-up before the nourishing steps. If you have thick scaling, bleeding or a rash elsewhere, see a doctor first.

Want a closer look at your scalp?

Folli-Heal Plus starts every course with a magnified scalp analysis at The Starling Mall, PJ. We explain what we see, then plan sessions with you.

Results vary from person to person.

FAQ

Is dandruff caused by a dry scalp?

Usually not. It is linked to scalp oil, Malassezia yeast and individual sensitivity [1]. A truly dry, tight scalp is a different problem.

Does dandruff cause hair loss?

Dandruff itself is not a main cause of hair loss, but scratching and inflammation can make hair look worse. Treating the scalp is still worthwhile.

How often should I wash an oily scalp?

Often enough to keep oil and flakes under control; for many people in a humid climate that means daily or every other day.

References

  1. Borda LJ, Wikramanayake TC. Seborrheic Dermatitis and Dandruff: A Comprehensive Review. J Clin Investig Dermatol. 2015;3(2). PubMed 27148560 · PMC4852869

This article is general information, not medical advice. If hair loss is sudden, patchy or comes with other symptoms, see a doctor.