Dandruff and a dry scalp: what actually works, and what doesn't

Why the flakes appear and why they are not all the same

Dandruff rarely shows up on its own: it is a sign that the skin on your head is running in the wrong mode. The most common cause is seborrheic dermatitis, a reaction to Malassezia, a yeast that lives on everyone's skin but in some men triggers inflammation, redness and greasy yellowish flakes. The second cause is the opposite in nature: genuine dryness, where the scalp loses moisture through hard water, hot showers, dry air during the heating season and harsh shampoos. Dry flakes are small, white and powdery, and the skin feels tight the moment you step out of the shower. A third scenario is contact irritation from styling products left on the scalp because they were rinsed out in a hurry. Telling these states apart matters, because the routines that fix them pull in opposite directions: an antifungal shampoo on an already parched scalp only makes the flaking worse, while a rich moisturising balm does nothing for seborrhea. Before you change any product, spend a week paying attention to when the flakes appear and whether there is itching. Those notes are worth more than a random bottle off the supermarket shelf. Two more things are worth knowing. Dandruff is not contagious and has almost nothing to do with how often you wash: washing more is not a treatment for seborrhea. It is also strongly seasonal, flaring in winter and under stress and settling on its own in summer, which is why judging a new routine after three days tells you nothing.

What to change in your routine: washing, water, products

The routine starts not with a new product but with how you wash your hair. Hot water strips the protective lipid layer faster than any shampoo does, so drop the temperature to barely warm and finish with a cool rinse. Shampoo goes on the scalp, not the lengths: massage it in with your fingertips for thirty to forty seconds and rinse thoroughly, because product left behind causes half of all itching. If seborrhea is the problem, the active ingredients that work are zinc pyrithione, ketoconazole, selenium sulfide and salicylic acid. Leave them on the skin for two or three minutes, otherwise they never get the contact time they need, and use them as a course two or three times a week rather than once in a panic. For a genuinely dry scalp the logic is reversed: a mild sulfate-free shampoo, less frequent washing, and a hydrating tonic or oil applied overnight. Styling products heavy in alcohol and wax are worth dropping for a while, or at least keeping off the roots. And a word about water: flats in Kyiv often run hard water, so a cheap shower filter sometimes does more than three new shampoos in a row. A few small things add up here: do not rotate five different shampoos at once, because then nothing tells you which one worked. Keep the active product as the base and use a mild one for the washes in between. Wash your comb, change the pillowcase more often, and swap a synthetic-lined hat for cotton.

When a barber is enough and when you need a doctor

Your barber sees the skin on your head up close more often than you do, and is usually the first to notice that the flakes have thickened or that redness has crept in behind your ears. In the chair you can get a deep cleanse, a scrub, a massage to move the blood, and a home routine matched to your actual skin type, which settles most everyday cases. But some signs call for a dermatologist and are not worth postponing: bright red patches with sharp edges, thick silvery scales, weeping areas, sores that will not heal, itching bad enough to wake you at night, or sudden hair loss alongside the flaking. Psoriasis, eczema and fungal infections can all look like that, and they are treated with medicine rather than cosmetics. One more reason to book an appointment is a correctly chosen pharmacy shampoo that has produced nothing after four to six weeks. The sensible order is simple: fix the washing and the household basics first, then run a month of active care, and if the skin has still not calmed down, go and get a diagnosis instead of buying a fourth product at random. Two closing notes. Do not scratch or pick the flakes off with your nails, because mechanical irritation keeps the inflammation going and the cycle simply repeats. And the popular tea tree oil advice only works at low concentration inside a finished product: neat essential oil on the scalp causes a chemical burn more often than it brings relief.