Every winter the same thing happens. The heating goes on, the air outside turns cold and damp, and hair that behaved perfectly in September suddenly feels dry, frizzy and full of static. Woolly hats and scarves rub against the ends, and hot showers and blow-drying on cold mornings strip away even more moisture.
The fix does not have to be complicated. One of the simplest ways to put moisture back is to switch to a gentler, milk-based wash day. In this guide we explain why winter is so hard on hair, how a milk routine works, and we compare the milk products from UK brand REHAB, so you can pick the ones that suit your hair and budget.
In this guide
- Why Hair Gets So Dry in Winter
- What Is a Milk Hair Routine?
- The REHAB Milk Range Compared
- Step 1: Wash With Shampoo Milk
- Step 2: Condition With Conditioner Milk
- Step 3: Protect With Hair Milk Before Drying
- Extra Help for Very Dry or Curly Hair
- Simple Winter Habits That Help
- Which Option Should You Choose?
- Frequently Asked Questions
Why Hair Gets So Dry in Winter
Hair needs a little moisture inside each strand to stay soft and flexible. In winter, several things work against it at once. Cold outdoor air holds very little water, and central heating dries indoor air even further. Very hot showers feel good on a cold morning but can leave the scalp tight and the lengths rough. Hats, collars and scarves add friction, which roughens the outer layer of the hair and makes frizz and split ends more likely.
The result is hair that tangles easily, looks dull and flies away the moment you brush it. The good news is that a few small changes to how you wash, condition and dry your hair can make a real difference within a couple of weeks.
What Is a Milk Hair Routine?
A milk routine simply means using lightweight, milky formulas at each step of wash day instead of harsh cleansers and heavy creams. Milky textures are designed to clean and condition without stripping the hair or weighing it down, which is exactly what dry winter hair needs. REHAB has built a whole range around this idea, with a shampoo, a conditioner and a leave-in spray that are made to be used together.

The REHAB Milk Range Compared
Here is how the main products compare. Prices are taken from rehabyourhair.com at the time of writing and may change, so check the site for the latest offers.
| Product | What it does | Key details | Price |
|---|---|---|---|
| Shampoo Milk | Cleanses hair and scalp | Removes dirt, sweat and product build-up without stripping | £18 |
| Conditioner Milk | Smooths and detangles | Argan oil, hydrolysed plant proteins and shea butter | £18 |
| Hair Milk Conditioning Heat Protection Spray | Leave-in conditioner and heat protector | Heat protection up to 230°C, moisture for up to 72 hours | £24 |
| Hair Moisturiser | Leave-in cream for very dry hair | Ceramides, amino acids and plant oils | £24 |
| Shampoo and Conditioner Milk Duo | Wash-day pair | Both wash products together | £28.80 (was £36) |
| Hair Milk Routine Trio | Full milk routine | Shampoo, conditioner and Hair Milk spray | £42 (was £60) |
Step 1: Wash With Shampoo Milk

Start with lukewarm rather than very hot water. REHAB Shampoo Milk lathers up to clean the hair and scalp, removing dirt, sweat, pollution and product build-up without stripping. The brand says its hydrating milky texture also helps fight frizz and soothe the scalp, leaving hair clean, comfortable and more radiant. In winter, many people find they can wash a little less often, which also helps the hair hold on to its natural oils. It costs £18. See Shampoo Milk at REHAB.
Step 2: Condition With Conditioner Milk

Conditioner is where dry hair gets most of its moisture back. REHAB Conditioner Milk is enriched with argan oil, hydrolysed plant proteins and shea butter. It is made to smooth, detangle and soften without making hair flat, so it suits fine hair as well as thicker hair. Focus it on the mid-lengths and ends, which are the oldest and driest parts of the hair, and leave it on for a couple of minutes before rinsing. It also costs £18, or you can buy the Shampoo and Conditioner Milk Duo for £28.80.
Get the Shampoo and Conditioner Milk Duo
Step 3: Protect With Hair Milk Before Drying

Most of us blow-dry more in winter, because nobody wants to go out into the cold with wet hair. That is why a heat protector matters. REHAB Hair Milk Conditioning Heat Protection Spray is a multi-tasking leave-in that protects against heat up to 230°C. It also detangles, smooths frizz, strengthens and locks in moisture for up to 72 hours. Because it is lightweight, it primes hair for styling without weighing it down.
Spray it onto towel-dried hair, comb it through and then dry as normal. It costs £24 on its own, and the Hair Milk Routine Trio, with the shampoo, conditioner and spray together, is £42 instead of £60. Shop the Hair Milk Routine Trio.
Extra Help for Very Dry or Curly Hair

If your hair is very thick, coarse or curly, you may want a richer leave-in. The REHAB Hair Moisturiser is a lightweight leave-in cream that hydrates thirsty strands. It contains ceramides, amino acids and plant oils to help strengthen the hair, smooth frizz and bring back shine. Use a small amount on damp ends, or on dry hair between wash days when the ends feel rough. It costs £24.
There is also a scented version of the spray. The Rescue and Revive Hair Milk from the Perrie Sian collection has the same heat protection and 72-hour moisture claim, with a warm fragrance of amber, vanilla, musk and coconut. It is also £24.

Simple Winter Habits That Help

- Swap your bath towel for a soft microfibre towel. The REHAB Micro-Fibre Hair Towel costs £14 and is designed to reduce friction and breakage.
- Turn the hairdryer down a notch and keep it moving, and always use a heat protector first.
- Never go out with wet hair in the cold. Damp hair is weaker and more likely to snap.
- Tie long hair loosely under hats and scarves to cut down on rubbing.
- Try a humidifier or a bowl of water near the radiator in your bedroom to add some moisture to the air.
Which Option Should You Choose?
If you just want to try the routine, the Shampoo and Conditioner Milk Duo is the easiest starting point. If you blow-dry or straighten most days, the Hair Milk Routine Trio is better value, because it adds the heat protection spray for a much smaller price than buying each item separately. For very dry or curly hair, add the Hair Moisturiser as an extra step. Browse the full REHAB range.
Frequently Asked Questions
Is a milk routine suitable for fine hair?
Yes. The REHAB milk formulas are described as lightweight and designed not to weigh hair down, which makes them a good fit for fine hair.
How hot can I style my hair after using Hair Milk?
REHAB says the Hair Milk Conditioning Heat Protection Spray protects against heat up to 230°C.
How often should I wash my hair in winter?
There is no single rule, but many people find washing a little less often in winter helps hair stay softer. Listen to your scalp and adjust.
