Dandruff and flaking: what is normal and what is not
2026-10-29 21:26:18 · 6 min read · Reviewed
Flaking has several causes, from a dry scalp to seborrhoeic dermatitis. The right response depends on which one you have.
Not all flakes are the same
- Dry scalp: small, white, dry flakes; the scalp feels tight. Often worse in dry weather or with frequent hot washing.
- Seborrhoeic dermatitis: larger, yellowish or greasy flakes with redness and itching. It is a common inflammatory skin condition and tends to come back.
- Product build-up: flakes that appear after styling products and disappear when you clarify.
- Other conditions: psoriasis and fungal infections look different again and need professional assessment.
What usually helps
For a dry scalp: wash a little less often, lower the water temperature, and use a gentle conditioner on the scalp if it feels tight.
For seborrhoeic dermatitis: medicated shampoos containing ingredients such as ketoconazole, selenium sulfide, zinc pyrithione or salicylic acid are commonly used. Follow the product instructions, leave the shampoo on the scalp for the stated contact time, and give it several weeks.
Important safety notes
- This app does not diagnose skin conditions.
- Do not self-treat with prescription medicines or high-dose supplements on the basis of an app recommendation.
- See a doctor or dermatologist if the scalp is very red, painful, swollen, weeping, or if flaking does not improve after several weeks of consistent care.
What traditional remedies can and cannot do
Practices such as oiling the scalp are widely used and can improve comfort and reduce dryness. They are not a proven treatment for inflammatory skin conditions, and heavy oils can make seborrhoeic dermatitis worse for some people. Treat them as comfort measures, not cures.
Sources
- NHS — Seborrhoeic dermatitis and dandruff (public patient information)
- American Academy of Dermatology — Dandruff: causes and treatment (public patient information)