The short answer: dandruff and a dry scalp both cause white flakes, but dandruff flakes tend to be larger and oilier, while dry scalp flakes are smaller and drier. Dandruff is harmless and not contagious, and it is not caused by poor hygiene. Gentle washing and moisture often help, but if flakes stay for weeks, or the scalp is red, sore or patchy, see a pharmacist or GP.
Last updated: November 2026.
Flakes on a child's scalp are common and worrying for many parents, and on darker hair they show up more easily. This guide explains the difference between dry scalp and dandruff, what may cause them, what you can do at home, and when to get advice. It uses NHS guidance, with our own tips for curly and afro hair.
Quick reference
| Sign | More like dry scalp | More like dandruff |
|---|---|---|
| Flakes | Small and dry | Larger, can look oily or yellowish |
| Scalp feel | Tight and dry, skin may feel dry elsewhere | Itchy, sometimes greasy |
| Often linked to | Cold weather, harsh washing, lack of moisture | A yeast on the skin, eczema, stress |
These are guides only. Many children have a mix, and only a health professional can say for sure.
In this guide
Dry scalp or dandruff?
The NHS says dandruff is harmless and not contagious, and that it can make the scalp feel dry and itchy. White flakes are also more noticeable on darker hair, which is why many parents of children with afro hair spot them quickly (source: NHS).
Dry scalp and dandruff can look alike. A dry scalp lacks moisture, so the flakes are usually small and dry. Dandruff is linked to a yeast that lives on the skin, and flakes can be bigger and oilier. If you are unsure, a pharmacist can take a look and advise.
What may cause flakes
According to the NHS, dandruff is not caused by poor hygiene. Possible causes include a yeast on the skin, eczema, stress and cold weather. A dry scalp can also come from washing with harsh products or too often, or from not enough moisture.
Other skin conditions can look like dandruff too, including psoriasis, contact dermatitis (a reaction to a product) and ringworm of the scalp. That is why the signs in the doctor section below matter. In babies, flaky patches may be cradle cap, which the NHS covers separately.
What to do at home
- Wash gently. Use a mild, kid-friendly shampoo and massage the scalp with your fingertips, not nails.
- Rinse well. Leftover product can irritate the scalp and add to flaking.
- Moisturise the hair and scalp lightly. A light mist or leave-in helps. Heavy layers of product can build up on the scalp, so use small amounts.
- Skip picking and scratching. It can irritate the skin. Keep nails short.
- Check new products. If flakes started after a new product, stop using it and see if things settle.
For medicated shampoos, the NHS says anti-dandruff shampoos with ingredients such as ketoconazole, coal tar or salicylic acid can be used for up to 4 weeks, and advises asking a pharmacist first, especially for children. Do not give a child an adult medicated shampoo without checking.
Wash day tips for curly and afro hair
- Part the hair into sections so you can reach the scalp.
- Wet the hair and scalp thoroughly before shampooing.
- Shampoo the scalp first, using gentle finger pads, then let the suds run down the lengths. This avoids rubbing the hair into knots.
- Rinse until the water runs clear.
- Condition the lengths, keeping heavy conditioner off the scalp if it feels greasy.
- Detangle gently. See our guide to detangling without tears.
- Finish with a light moisturiser. Our LOC and LCO guide covers the layering order.
How often to wash depends on your child's scalp and hair. See our wash day routine by age for ideas.
5 mistakes to avoid
- Assuming it is a hygiene problem. The NHS says dandruff is not caused by poor hygiene.
- Scratching or picking flakes. It can make the scalp sore.
- Layering thick oils and butters on the scalp. If flakes are yeast-related, heavy product may not help. Use a little at a time.
- Using strong adult products on a child. Ask a pharmacist first.
- Ignoring patches. Scaly bald patches need a professional look, not more oil.
Products that help
Here is how our products are described on their pages. Please read the full ingredients on each page before buying, and patch test first. We do not promise results, and these are not medical treatments.
| Product | What it is for |
|---|---|
| Kids Natural Shampoo 1000ml | A gentle shampoo for regular washing |
| Antidandruff Oil | A scalp oil made for flaky, dry scalps. Use a small amount and patch test first |
| Kids Leave-in Conditioner with Hibiscus | Softens the hair lengths and helps with combing |
| Hair Mist Hydrate Spray | A light spray for adding moisture between washes |
Browse the full Kids Hair Care collection, or read about the causes of breakage.
When to see a doctor
The NHS advises seeing a GP if flakes have not improved after 4 weeks of using an anti-dandruff shampoo, or if your child has any of the following:
- a very itchy, red or swollen scalp
- severe flaking, or flaky patches on the face or body
- scaly bald patches, swollen glands in the neck, or signs that could be scalp ringworm
- sore, weeping or crusted skin
Ask a pharmacist before using any medicated shampoo on a child.
This article is general information, not medical advice.
FAQs
Is dandruff contagious?
No. The NHS says dandruff is harmless and not contagious. Your child can share combs and hats without catching it, though it is still good practice to wash them.
Is dandruff caused by poor hygiene?
No. The NHS says it is not caused by poor hygiene. Possible causes include a yeast on the skin, eczema, stress and cold weather.
Can I use coconut or other oils on a flaky scalp?
Some families find light oils soothing, but oils can also build up. Use a small amount and stop if the scalp looks worse. If flakes persist, ask a pharmacist or GP.
How often should I wash a child's hair if the scalp is flaky?
It depends on your child's scalp and hair. Gentle, regular washing keeps the scalp clean, and moisturising the lengths afterwards helps curly hair. If you are not sure, ask your GP or pharmacist.
Can I use an adult anti-dandruff shampoo on my child?
Check with a pharmacist first. The NHS says to ask a pharmacist before using medicated shampoos on children.
What is the difference between cradle cap and dandruff?
Cradle cap affects babies and causes crusty or flaky patches on the scalp. The NHS covers it on its own page. If your baby has it, ask your health visitor or GP.