How Often Should You Wash Your Hair? By Scalp Type
8 min read Care know-how Updated 5 October 2026 By Anna Sophie Schulenburg
How often you should wash your hair depends on your scalp: an oily scalp copes with daily washing, a normal one with every two to three days, a dry one with two or three washes a week, and thick, curly hair often with one or two. Wash as soon as your roots turn lank, start to itch or carry styling residue. Shampoo goes on the scalp only, the water stays lukewarm, and conditioner starts at ear level. You can tell whether your rhythm suits you the day after: your scalp feels comfortable, and your roots hold out until the next planned wash.
Washing your hair at a glance
| Step | Amount and time | Water | What matters |
|---|---|---|---|
| Prepare | Brush through dry, then wet for 30 to 60 seconds | Lukewarm | Hair is soaked right down to the scalp |
| Shampoo | Hazelnut-sized for chin-length hair, walnut-sized for shoulder- to chest-length | Lukewarm | Lather it in your hands first, then onto the scalp |
| Massage | About a minute with your fingertips | Lukewarm | Forehead, temples, behind the ears and the nape |
| Rinse | At least as long as the massage | Lukewarm | No more foam at the nape |
| Condition | Conditioner from ear level, leave on as long as the label says | Lukewarm, a cooler finish if you like | Squeeze the water out of the lengths first |
| Dry | Press with a towel, wrap the hair | None | Don't rub |
How often should you wash your hair? Your rhythm by scalp type
Sebum is made only at the scalp, and how much your glands produce comes down mostly to genetics and hormones. That is why no single number fits everyone. The table gives you a starting point to fine-tune after two to three weeks.
| Your scalp | Starting point | It fits when … | Adjust when … |
|---|---|---|---|
| Oily, roots lank after one day | Daily to every two days | your roots still fall loosely in the evening | your scalp feels tight after washing: a milder shampoo, one round instead of two |
| Normal | Every two to three days | your roots still look fresh on day three | they are already flat by the second evening: wash a day earlier |
| Dry or sensitive | Two to three times a week | nothing feels tight or itchy | it itches after every wash: longer gaps, a mild shampoo, cooler water |
| Thick, curly or coily hair | Once or twice a week | your curls keep their shape between washes | your scalp itches before your lengths need a wash: wash just the roots in between |
| Lots of exercise, a helmet or a hat | Rinse after sweating, shampoo to suit your scalp type | your scalp doesn't feel sticky after a workout | it itches despite rinsing: a quick wash with half the usual shampoo after training |
If two rows fit you at once, say oily roots and dry lengths, the free hair analysis asks about your scalp and your lengths separately.
Plenty of people believe a scalp can be “trained” to produce less oil by washing it less often. There is no solid evidence for that. Frequent washing doesn't boost sebum production either. Stretching the gaps mostly gets you used to the look, while sebum, sweat and skin flakes keep building up at the roots until your scalp itches or smells.
If your roots turn lank by midday despite washing every day, changing the rhythm alone won't get you far. Wash just the roots, clarify thoroughly every few weeks and learn how to cleanse an oily scalp without stripping it. A powder bridges a single day between washes. Mind the amount and the spraying distance with dry shampoo and your parting stays free of a white film.
If your scalp itches whatever rhythm you try, sheds thick yellowish scales, looks red or weeps, see a dermatologist. Signs like these can point to eczema, psoriasis or a fungal infection, and a washing plan alone won't bring those under control. Small, dry flakes on a tight scalp are a different matter from larger, greasy scales; work out whether it is a dry scalp or dandruff before you change shampoo.
How to wash your hair properly in six steps
Step 1 — Prepare. Brush your dry hair through once, working from the ends up to the roots. That loosens knots before they mat when wet and breaks up styling residue. Then let lukewarm water run over your head for 30 to 60 seconds, pushing your fingers through to the scalp as you go. Dense hair sheds water on the outside and stays dry underneath, and no shampoo will lather there later.
Step 2 — Lather the shampoo. Put the shampoo in your palm, rub it between both hands with a little water, then spread it in strips over the top of your head, the sides and the nape. A single blob on the parting lands too thickly in one spot and barely reaches the back of your head. As a starting amount, a hazelnut is enough for chin-length hair and a walnut for shoulder- to chest-length hair. If that lathers across your whole scalp, you need no more. For fine hair that goes flat quickly, the Revive™ Shampoo fits. Dry lengths get the Advanced Hydration Shampoo if your hair is fine to medium, and the Renew™ Shampoo if it is medium to thick. If your roots and lengths need different things, deciding which MONAT shampoo suits you starts with the scalp.
Step 3 — Massage the scalp. Work for about a minute with your fingertips in small circles, from the forehead over the crown down to the nape. Fingernails scratch the skin and irritate it. Don't forget the areas the shower stream tends to miss: the temples, behind the ears and the hairline at the nape. Leave the lengths alone, because rubbing them together roughens the cuticle and tangles the hair.
Step 4 — Rinse. Rinse for at least as long as you massaged, tipping your head forwards once and backwards once. The foam running off cleans the lengths along the way. If your scalp feels sticky or tight once dry, there was still shampoo in your hair.
Step 5 — Condition. Squeeze the water out of your lengths with both hands, otherwise the conditioner gets diluted and slides off. Spread it from ear level to the ends, from chin level if your hair is fine, and leave it on for as long as the label says. Some scalp conditioners are meant for the roots too, according to their instructions; in that case, follow the instructions. The simplest choice is the conditioner from the same line as your shampoo, so the Revive™ Conditioner with the Revive™ Shampoo. If you follow up with a leave-in (care that stays in the hair) or an oil, the order of your hair products decides whether each one ends up where it belongs.
Step 6 — Dry. Wrap your hair in a towel or an old cotton T-shirt and press the water out. Rubbing tangles the wet lengths, and the ends can snap in the process. Comb only afterwards, with a wide-tooth comb, working up from the ends.
Should you shampoo once or twice?
Shampooing twice pays off when the first round barely lathers. That tells you sebum, dry shampoo, oil or styling products are soaking up the foam. The first round loosens that film, the second cleans the scalp underneath, and half the amount is enough for it.
If it lathers well the first time and your scalp feels clean afterwards, one round will do. With a dry or sensitive scalp, one thorough round is the kinder choice. If the shampoo still barely lathers on the second round and your hair stays dull, a film of silicones, oils or limescale may be sitting on it. A clarifying wash every three to four weeks lifts that kind of product build-up on hair and scalp, for example with the Purifying Vinegar Shampoo. Skip it on an irritated scalp.
How warm should the water be?
Lukewarm, roughly body temperature. Sebum dissolves well at that temperature, and the scalp stays calm. Very hot water pulls more oil out of the scalp and the lengths. Your scalp is then more likely to feel tight and redden.
A cool final rinse over the lengths does no harm, and many people find it refreshing. It won't seal the hair shut like a lid, though, and the effect on shine is small. So there is no need for an ice-cold shower.
Washing by hair type
Your scalp decides how often you wash. How you wash and condition depends on your lengths.
| Hair | Shampoo | Conditioner | Worth knowing |
|---|---|---|---|
| Fine and straight | A little less, well lathered | From chin level, light texture | Rinse the conditioner out thoroughly or your roots fall flat |
| Thick or very dense | Walnut-sized, applied in two portions, front and back | From ear level, generously into the ends | Wet it for longer so the water gets right inside |
| Curls and waves | Roots and scalp only | Plenty, scrunched through with your fingers | Detangle wet hair only with your fingers or a wide-tooth comb |
| Coloured or bleached | A mild shampoo, lukewarm rather than hot | Every wash, a strengthening treatment if it breaks | Wait as long as your hairdresser advises before the first wash after colouring |
| Short, up to chin length | A hazelnut is enough | Ends only, or skip it | A 2-in-1 product can be enough |
Common mistakes and what to do instead
| Mistake | Better |
|---|---|
| Working shampoo into the lengths | Shampoo the scalp only; the foam cleans the lengths as you rinse |
| Scrubbing with your fingernails | Massage in small circles with your fingertips |
| Showering very hot | Wash lukewarm, with a cooler finish if you like |
| Always shampooing twice | Only when the first round barely lathers |
| Conditioner right up to the roots | From ear level, from chin level for fine hair |
| Conditioner on dripping-wet hair | Squeeze the water out of the lengths first |
| A quick rinse and done | Rinse as long as you massaged, nape and ears included |
| Rubbing with the towel | Press and wrap |
Right away
Right after washing, hair feels clean, the roots look fresher and the lengths comb more easily.
With continued use
With a wash routine suited to your scalp, hair stays fresh and workable longer over a few weeks, and avoidable friction damage from washing wrong goes down.
What it can't do
Washing alone doesn't solve a medical scalp or hair problem, doesn't stimulate growth and doesn't replace medical assessment for persistent symptoms.
Quick questions
Can I wash my hair with conditioner instead of shampoo?
Yes, now and then, if your hair is very dry and curly. Conditioner lifts only a little sebum and styling residue, so your scalp still needs shampoo on your regular wash days.
Is it better to wash your hair in the morning or at night?
Either works. If you wash at night, blow-dry your roots before bed, because damp hair rubs on the pillow and tangles more easily.
Do I need to switch shampoo regularly because my hair gets used to it?
No. Switching is worth it when your needs change, for example after bleaching, in winter or when your scalp starts to feel tight.
Is it enough to wash your hair with just water?
No, if your scalp is oily, because water alone barely dissolves sebum. Short hair on a dry scalp can make do with plain water after exercise; on wash days your scalp still needs shampoo.
What is the longest I can go between washes?
A week is easily manageable for thick, curly hair on a dry scalp. If your scalp itches or your roots smell before then, the gap was too long.
The free hair analysis suggests a shampoo to match your washing rhythm after a few questions about your scalp and lengths.