Self-test
Is this type yours?
- ◎After washing, your scalp feels tight, especially when you wash with hot water.
- ◎Fine, white, dry little flakes fall onto your shoulders; the flakes aren't oily or yellowish.
- ◎Your scalp itches more, especially in the winter months, when the central heating radiators are on and in cold weather.
- ◎Your hair usually goes for days without getting oily.
- ◎Your body and face also tend to be dry.
- ◎There's no redness, no oily yellow flakes and no distinct plaques on your scalp; if there are, it may be a different scalp problem.
In depth
The science of your hair
Just like the skin elsewhere, the scalp has a protective barrier on its outermost layer. This barrier is made of dead cells stacked like bricks and the lipids (ceramides, cholesterol and fatty acids) that fill the gaps between them like mortar. When the barrier is intact, the scalp holds on to its moisture and is protected from outside factors. Hot water, strong shampoos, cold and dry air, the heat from central heating and the decline in sebum that comes with age all weaken this barrier; water loss increases, the scalp feels tight and fine, dry flakes start to shed. Dry scalp flakes are usually small and white; oily, yellowish flakes, on the other hand, are mostly linked to dandruff or seborrheic dermatitis.
When healthy, the surface of the scalp is mildly acidic, and this acidic environment is important for the barrier to repair itself. Alkaline soaps and harsh shampoos can disrupt this acidity. The fine, white flaking commonly called "dry dandruff" is often the result of this dryness; with oily dandruff, the flakes are larger, oily and yellowish, and different care is needed. With a dry scalp, the goal is to support the protective layer and restore moisture while cleansing the scalp gently.
Priorities
What does it need?
01
Barrier repair
Care products that support barrier lipids like ceramides, cholesterol and fatty acids help the scalp hold on to its moisture.
02
Gentle cleansing
A dry scalp doesn't like harsh shampoos. A moisturizing, mildly acidic shampoo with soft surfactants cleans the scalp without drying it out.
03
Moisture
Humectants like glycerin, panthenol and hyaluronic acid bring water to the scalp.
04
Protection from heat and environment
Hot water, central heating and dry air dry out the scalp. Lukewarm water and humidity in your home are simple but effective measures.
05
Telling them apart
A dry scalp and dandruff need different care. If the flakes are oily and yellowish, or if there's redness or plaques, see a dermatologist.
Dry scalp
Barrier repair
Step by step
Your hair routine
- 1
Wash 2–3 times a week
For a dry scalp, two or three washes a week is usually enough; if your scalp doesn't get oily, there's no need to wash more often.
- 2
Moisturizing, gentle shampoo
Choose a sulfate-free or gentle-surfactant moisturizing shampoo and apply it to your scalp with a soft massage.
- 3
Lukewarm water
Hot water dissolves barrier lipids and increases dryness. Wash with lukewarm water and keep showers short.
- 4
Rinse shampoo thoroughly
Shampoo residue left on the scalp can cause irritation and itching.
What you can add to your routine
Barrier and microbiome hand in hand
Research shows that on a flaking scalp the barrier weakens and microbiome balance shifts. A strong barrier offers a more stable home for beneficial microorganisms.
Why an acidic surface matters
The natural pH of the skin's surface is on average below 5, and this mildly acidic environment is favorable for beneficial resident microorganisms. Alkaline products can upset this balance.
Reading labels
Ingredient guide
✓What helps
- Ceramides, cholesterol and fatty acids: support the lipids that form the mortar of the scalp barrier.
- Glycerin and hyaluronic acid: humectants that draw water into the scalp and hold it there.
- Panthenol: soothes the scalp and helps it hold moisture.
- Niacinamide: can support barrier function and improve scalp comfort.
- Mild surfactants (glutamate, isethionate, betaine derivatives) and a mildly acidic pH: protect the barrier while cleansing.
- Urea (in low concentrations): holds moisture and helps soften dry flakes.
- Prebiotic ingredients: can help support microbiome balance by feeding the beneficial microorganisms on your scalp.
!Be careful with
- Strong sulfates (sodium lauryl sulfate): can dissolve barrier lipids and increase dryness and itching.
- Alkaline soaps and soap-based shampoos: can disrupt the scalp's mildly acidic surface.
- High levels of alcohol, menthol and heavy fragrance: give a short-lived fresh feeling but can cause irritation over time.
- Unnecessary use of strong anti-dandruff shampoos: if the flakes come from dryness, these shampoos can dry out your scalp even more.
- Harsh, gritty scrubs: irritate an already weakened barrier.
Caution
Common mistakes
- ✕Mistaking dry flakes for dandruff and drying out your scalp even more with strong anti-dandruff shampoos.
- ✕Taking long showers with very hot water.
- ✕Scratching your scalp with your nails.
- ✕Washing every day with a strong shampoo.
- ✕Trying to force flakes off with harsh, gritty scrubs.
- ✕Spraying alcohol-based sprays and tonics onto your scalp.
Popular searches
Most asked about Dry scalp
Your questions
Frequently asked questions
How can I tell a dry scalp from dandruff?+
Dry scalp flakes are usually small, fine, white and dry; the scalp feels tight and hair doesn't get oily. With dandruff, the flakes can be larger, oily and yellowish, and the scalp is usually oily. If there's redness, oily crusts or distinct plaques, it's a good idea to see a dermatologist.
Does putting oil on a dry scalp help?+
On a truly dry scalp without dandruff, a light, short oil treatment before washing can bring comfort. But if the flaking comes from dandruff, it can get worse, because the yeast naturally present on the scalp feeds on oils. If you're not sure, a scalp serum with ceramides or moisturizers is a safer option than oil.
Why does my scalp get drier in the winter?+
Cold air, low humidity and the heat from central heating increase water loss from the scalp. People also tend to take hotter showers in winter. Lukewarm water, moisturizing products and a room humidifier can make a difference during this time.
How often should I wash my hair if I have a dry scalp?+
For most dry scalps, two or three washes a week is enough. More than how often you wash, what matters is using a gentle, moisturizing shampoo and avoiding hot water.
Can a dry scalp cause hair loss?+
A dry scalp on its own isn't known to cause hair loss. However, intense itching and scratching can wear down the strands mechanically. If you notice significant shedding, there may be other causes, and a dermatologist's evaluation is needed.
How do I get rid of a dry scalp?+
First, drop the drying habits: very hot water, long showers, strong sulfate shampoos and alcohol-based sprays. Then use a gentle, moisturizing shampoo, apply a light scalp serum with ceramides, glycerin or panthenol after washing and humidify your space in winter. If the dryness doesn't improve in a few weeks or comes with redness or thick flakes, see a dermatologist.
Why is my scalp flaking?+
The most common causes of flaking are a dry scalp, dandruff and seborrheic dermatitis; psoriasis and irritation from products can also cause flaking. Fine, white, dry flakes usually point to dryness; large, oily, yellowish flakes suggest dandruff or seborrheic dermatitis. Thick, silvery-white flakes on well-defined plaques may point to psoriasis and call for a dermatologist's evaluation.
Which shampoo should I choose for a dry scalp?+
A sulfate-free or gentle-surfactant shampoo with a mildly acidic pH and humectants like glycerin and panthenol is a good choice. If the flakes come from dryness, strong anti-dandruff shampoos can dry out your scalp even more. Products with little fragrance and a short ingredient list also lower the risk of irritation.
Scientific basis
Sources
- 1.Stratum corneum dysfunction in dandruff
Turner GA, Hoptroff M, Harding CR · International Journal of Cosmetic Science 34(4):298-306 · 2012 · doi:10.1111/j.1468-2494.2012.00723.x
Showed that on a scalp with dandruff the outermost protective layer (the barrier) is impaired, water loss increases and the lipid structure changes.
- 2.Natural skin surface pH is on average below 5, which is beneficial for its resident flora
Lambers H, Piessens S, Bloem A, Pronk H, Finkel P · International Journal of Cosmetic Science 28(5):359-370 · 2006 · doi:10.1111/j.1467-2494.2006.00344.x
Showed that the natural pH of the skin surface is on average below 5 and that this mildly acidic environment is favorable for beneficial resident microorganisms.
- 3.A practical guide to scalp disorders
Grimalt R · Journal of Investigative Dermatology Symposium Proceedings 12(2):10-14 · 2007 · doi:10.1038/sj.jidsymp.5650048
Summarizes, in practical terms, common scalp problems such as dandruff, seborrheic dermatitis, psoriasis and itching, and how to tell them apart.
- 4.Shampoos: ingredients, efficacy and adverse effects
Trüeb RM · Journal der Deutschen Dermatologischen Gesellschaft 5(5):356-365 · 2007 · doi:10.1111/j.1610-0387.2007.06304.x
Examines, from a dermatological perspective, the effectiveness and possible side effects of the surfactants, conditioning ingredients and preservatives in shampoos.
- 5.Comparison of healthy and dandruff scalp microbiome reveals the role of commensals in scalp health
Saxena R, Mittal P, Clavaud C, et al. · Frontiers in Cellular and Infection Microbiology 8:346 · 2018 · doi:10.3389/fcimb.2018.00346
Compared the microbiome of healthy and dandruff-affected scalps and reported that the beneficial resident bacteria on a healthy scalp are associated with barrier and sebum balance.
- 6.Effects of hard water on hair
Srinivasan G, Srinivas CR, Mathew AC, Duraiswami D · International Journal of Trichology 5(3):137-139 · 2013 · doi:10.4103/0974-7753.125609
Reported a slight decrease in tensile strength in hair strands washed with hard water, although the difference was not statistically significant.
