Dry Hair: How to Fix It, Causes and What Helps
How to fix dry hair comes down, above all, to three things: wash less often and in lukewarm water, put conditioner through the lengths and ends after every wash, and cut down on heat and friction, by day and by night. Fixing dry hair mostly means stopping what dries it out and caring for the lengths you have; split ends cannot be permanently repaired, only trimmed off. Here you will find how to recognise dry hair, where the dryness comes from, what helps straight away and what only works over time.
How to tell if you have dry hair
Dry hair feels rough and straw-like, has little shine and is hard to comb. The ends are often lighter than the roots, stick out or break easily, and stray hairs stand up after brushing. The roots usually look normal, because the lengths and ends are the oldest part of your hair and have been through the most washes, blow-dries and sunny days. If a lack of shine bothers you most, our guide on how to get shiny hair explains what else can make hair look dull.
Dry hair and a dry scalp are not the same thing. If your scalp itches, feels tight or sheds fine flakes, the issue is the skin, not the lengths, and the skin needs different care from the hair. The two can occur together, but they can be dealt with separately.
A simple test: take a strand from the lengths between two fingers and run them slowly from the end towards the root. If it feels rough, catches or the end looks frayed, the lengths are probably dry, though these signs can also come from damage. Repeat the test after a few weeks to see whether your routine is changing anything.
Why hair gets dry
The most common reasons lie in how hair is handled day to day:
- Washing too often and in water that is too hot: every wash takes away some of the natural oil that keeps the lengths supple, and hot water adds to that.
- Heat styling: hairdryers, straighteners and curling tongs, especially on the highest setting and without heat protection.
- Colouring and bleaching: especially when you colour often.
- Summer: sun, salt water and chlorine.
- Indoor heating: dry air in heated rooms.
- Friction: rubbing with a towel and rough combing.
- Length: on long hair, the ends are often several years old.
Curly and coily hair often looks dry sooner than straight hair. If your hair goes static as soon as the heating is on, our guide to static hair covers the causes and what to do. If dry hair also becomes brittle, our guide to hair breakage explains how that happens and what you can do about it. If your hair turned stiff and straw-like after you started using protein-rich products, our guide to protein overload covers what may be behind it and what to check first.
How to fix dry hair, step by step
You do not have to change everything at once. Start with the first steps and add the others as they fit into your routine:
- Wash less often. Many people manage well with two or three washes a week; how often is right for you depends on your scalp.
- Wash in lukewarm rather than hot water.
- Put shampoo only on your scalp and roots. Enough of it runs through the lengths as you rinse.
- Use conditioner after every wash and work it through the lengths and ends, not into the scalp.
- Give the lengths a mask regularly, for example once a week, and leave it on for as long as the pack says.
- Squeeze the water out with a towel instead of rubbing.
- Put a few drops of hair oil or a leave-in conditioner on the ends, ideally on towel-dried hair.
- Comb wet hair only with a wide-tooth comb, working up from the ends.
- Let your hair air-dry whenever you can. If you blow-dry, use a medium setting and heat protection.
- Have your ends trimmed as soon as they fray.
For products, a mild shampoo, a conditioner and a mask for dry hair, plus an oil or leave-in for the ends, are usually enough. Where you apply them matters more than the brand: cleansing at the roots, care in the lengths. Very fine hair only takes a little oil before it hangs heavy; thick and curly hair usually takes more.
What helps straight away and what takes time
Some things you notice straight away, others only over time or in the hair that grows back.
| What you do | When | What changes |
|---|---|---|
| Use conditioner after every wash | Straight away | The lengths comb more easily and feel smoother |
| Use a mask once a week | Straight away | The lengths feel softer |
| Put oil or leave-in on the ends | Straight away | The ends feel softer and look less straw-like |
| Have the ends trimmed | Straight away | The driest part is gone |
| Wash less often and in lukewarm water | Over time | The lengths lose less oil overall |
| Use less heat, always with heat protection | Over time | Less new dryness is added |
| Colour or bleach less often | In the hair that grows back | New growth gets less chemical treatment |
With care, hair that is already dry and straw-like becomes softer and easier to handle, but not like new. What grows back fares better if it gets less heat and chemical treatment from the start.
What to do about dry hair at night
How to wear your hair to bed, by length and type, is covered in our guide on how to protect hair while sleeping. For dry hair, three habits matter most:
- Let your hair dry before bed, at least until it no longer drips. Our guide to sleeping with wet hair explains why.
- Gather long hair loosely, into a braid or a bun on top of your head, with a soft tie that has no metal join.
- If you leave an oil treatment in overnight, put an old spare pillowcase over your pillow to keep the oil off your good one.
As you sleep, the lengths drag across the pillow every time you turn. Silk has a smoother surface and less friction than cotton, and a bonnet keeps the lengths off the pillow. A silk pillowcase or a bonnet does not replace care, and dry hair does not become more supple from either; both only reduce the friction the night adds.
What care cannot do
Care makes dry hair more supple and easier to comb, but it does not repair it. A split or snapped strand cannot be restored: care products can only hold a split together or smooth it down for a while, and the lasting fix is to cut it off. No shampoo and no mask makes dry ends as good as new. If your scalp itches or flakes for a long time, or your hair suddenly turns dry or thin or falls out for no clear reason, that is worth seeing a doctor about.
Our silk pillowcases
Our silk pillowcases are made from organic mulberry silk at 22 momme and Grade 6A, and the silk is GOTS certified. The pillowcases are 100% silk, with silk on both faces and a hidden YKK zip. They carry the OEKO-TEX MADE IN GREEN label, and the label ID M27MNB1V9 can be checked on the OEKO-TEX website. The pillowcases also carry the Dermatest 5-Star seal and the Dermatest Sensitive Skin seal, dermatologically tested for sensitive skin.
Frequently asked questions
How can I tell if my hair is dry?
Dry hair feels rough and straw-like, has little shine and is hard to comb, and the ends are often lighter and break easily. The roots, by contrast, usually look normal.
How often should I wash dry hair?
As rarely as your scalp allows. Many people manage well with two or three washes a week. Wash in lukewarm water and put shampoo only on your scalp and roots.
What helps very dry hair quickly?
What you notice quickly is conditioner after every wash, a regular mask, a few drops of oil on the ends and a trim. In the long run, what counts is how often you wash and how much heat you use, so that less new dryness is added.
Why is my hair still dry even though I use conditioner?
Usually more dryness is added than care can make up for: water that is too hot, daily blow-drying or straightening without heat protection, and frequent colouring. Sometimes the care also lands on the scalp instead of the lengths. And ends that have been dry for a long time become softer with care, but the dryness there is only gone once they are trimmed.
Is an overnight oil treatment good for dry hair?
Once an overnight oil treatment has been washed out, many people find their lengths feel softer. Use a little oil, keep it off the scalp and put an old spare pillowcase over your pillow to keep the oil off your good one. Wash the oil out of your hair thoroughly in the morning; just this once, work a little shampoo into the oiled lengths as well, and count it as one of your washes for the week. Our guide to hair oil overnight covers how much oil to use and how long to leave it in.
Are dry hair and a dry scalp the same?
No. Dry hair mainly affects the lengths and ends, while a dry scalp itches, feels tight or flakes. Each needs its own care, and if your scalp keeps bothering you, have a doctor look at it.
RENESSY · Updated September 2026