A Winter Routine for Curly and Coily Hair in Canada

Curly and coily hair often feels drier and tangles more easily than straight hair. Add a Canadian winter, with heated indoor air, wool toques, scarves and freezing walks, and curls can turn frizzy, tangled and fragile by January. The good news is that a winter routine does not need dozens of products. It needs the right wash rhythm, more moisture, gentler drying and some protection at night and under your hat. Here is a step-by-step approach you can adjust for your own curl pattern.

Wash day: shampoo, co-wash and how often

There is no single correct schedule. The American Academy of Dermatology (AAD) recommends washing based on how quickly your hair and scalp get oily or dirty, and always following with conditioner. For tightly curled and coily hair, the AAD's tips for Black hair suggest washing once a week or every other week to avoid the build-up of products, which can be drying.

In winter, many people with curls find a rhythm like this works:

• Main wash (every 1–2 weeks): a gentle, moisturizing shampoo focused on the scalp. Let the suds rinse through the lengths rather than scrubbing them.
• Co-wash in between (optional): "co-washing" means cleansing with a conditioner or cleansing conditioner instead of shampoo. It refreshes curls without stripping, but it does not remove heavy build-up, so keep a regular shampoo in the rotation.
• Scalp check: if your scalp gets itchy, flaky or oily between washes, wash more often, not less. Persistent scalp problems are worth a visit to a doctor or dermatologist.

Use lukewarm rather than very hot water, especially when the air is cold and dry. You can browse shampoos, conditioners and stylers made for textured hair in our curly hair care collection.

Deep conditioning and masks

Winter is when deep conditioning earns its place. The AAD's advice for Black hair includes a hot oil treatment twice a month for extra moisture and elasticity, and many curly routines add a weekly or fortnightly deep-conditioning step.

1. After shampooing, squeeze out excess water so the product isn't diluted.
2. Apply a deep conditioner or hair mask section by section, concentrating on mid-lengths and ends.
3. Detangle gently with your fingers or a wide-tooth comb while the conditioner gives slip.
4. Leave it on for the time on the label. A plastic cap or warm towel keeps the hair comfortable while you wait.
5. Rinse with cool to lukewarm water.

If curls start to feel mushy, overly soft or limp, that can be a sign to balance moisture-heavy products with a protein-containing conditioner now and then. Watch how your hair responds rather than following a fixed rule.

Leave-ins, oils and layering

Most curly routines layer products from lightest to heaviest on soaking-wet hair:

• Leave-in conditioner for slip and moisture.
• Cream or curl definer for shape and hold.
• Oil or butter to seal, used sparingly on the ends.

Some people prefer to apply oil before cream; try both orders and keep the one that leaves your curls soft and defined, not greasy. Lightweight oils such as argan or jojoba tend to suit finer curls, while thicker coils often tolerate richer oils and butters. Our hair oils collection is a good place to compare textures. Between wash days, a light mist of water plus a small amount of leave-in can revive flattened curls without a full wash.

Detangling and drying without the frizz

Wet hair is more fragile than dry hair. The AAD's styling advice notes that while most people should handle wet hair as little as possible, people with tightly curled or textured hair should detangle while wet to reduce breakage. Use conditioner for slip, start at the ends and work up, and use your fingers or a wide-tooth comb.

Next, blot with a soft T-shirt or microfibre towel instead of rubbing. Then choose how to dry:

• Diffusing: a diffuser spreads airflow so curls dry without being blown apart. Cup sections into the bowl, use low to medium heat and speed, and avoid touching curls until they are mostly dry.
• Air drying: gentle, but slow in a cold house. A 2011 study in the Annals of Dermatology found that hair dried with a dryer held about 15 cm away and kept moving showed less overall damage than hair left to dry naturally, likely because it stayed wet for less time. Hotter, closer drying caused more surface damage.

In practice, many curly heads air dry part of the way, then finish with a diffuser on low before heading out into the cold. Diffuser attachments are in our hair diffusers collection.

Hats, static and overnight protection

Under your toque

A toque is non-negotiable in much of Canada, but rough wool and acrylic can create friction and static that rough up curls. A few habits help:

• Wear a satin cap or scarf under your hat, or choose a hat lined with a smooth fabric.
• Make sure hair is dry before putting on a hat; flattening damp curls under a toque usually means frizz later.
• Tuck long curls inside your coat or under a smooth scarf so they don't rub against wool all day.
• Smooth a drop of oil or leave-in over your palms and lightly press over static-y areas once you're indoors.

Overnight

Rubbing against a rough pillowcase all night can leave curls frizzy and flattened. Many people with curly and coily hair loosely gather their curls on top of the head (often called a "pineapple"), then cover them with a satin bonnet, or sleep on a satin or silk pillowcase. The aim is less friction and less flattening, so you need less re-styling in the morning. Browse hair bonnets and satin caps for options in different sizes.

Hard water: what it can and can't do

Water hardness varies widely across Canada. Health Canada's drinking water guidance classifies water above 180 mg/L (as calcium carbonate) as very hard, notes that hard water needs more soap to lather and causes scaling, and reports much higher hardness in raw groundwater in some provinces than others. You'll often notice it as residue on taps and a shampoo that won't foam.

The evidence on hair itself is limited. A small 2013 study in the International Journal of Trichology found hard water did not change hair's tensile strength or elasticity. If your curls feel coated or dull, an occasional clarifying shampoo, followed by a deep conditioner, is a reasonable step, but it is not a reason to worry about breakage.

Your winter curl checklist

• Shampoo every 1–2 weeks (or as your scalp needs), conditioner every time, co-wash in between if you like.
• Deep condition or mask every week or two.
• Layer leave-in, cream and a little oil on wet hair.
• Detangle wet with conditioner and a wide-tooth comb; blot, don't rub.
• Diffuse on low, about a hand-span away, and go out with dry hair.
• Satin under your hat and over your curls at night.
• Clarify occasionally if hard water leaves build-up.

For more cold-weather tips, see our winter hair care guide for Canada.

Frequently asked questions

How often should I wash curly or coily hair in winter?

Wash based on how quickly your scalp gets oily or itchy. For tightly curled and coily hair, the American Academy of Dermatology suggests once a week or every other week, always followed by conditioner.

What is co-washing?

Co-washing means cleansing with a conditioner or cleansing conditioner instead of shampoo. It refreshes curls between wash days, but it does not remove heavy build-up, so keep a regular shampoo in your rotation.

Is diffusing better than air drying curls?

Both can work. A 2011 study found blow-drying from about 15 cm away with continuous motion caused less overall damage than natural drying; use a diffuser on low heat and keep it moving.

Does a satin bonnet help curly hair?

Many people with curls use a satin bonnet or satin pillowcase to reduce friction and flattening overnight, which means less restyling in the morning. A satin cap under your toque can help during the day too.

Does hard water damage curly hair?

Evidence is limited: a small 2013 study found hard water did not change hair strength or elasticity. If hard water leaves your curls feeling coated or dull, an occasional clarifying shampoo followed by deep conditioner can help.