Northern Ontario winter is about five months long and it is hard on hair in three specific ways: a hat on your head for most of the daylight hours, indoor air with almost no moisture in it, and the temperature swing between the two.
None of that is fixed by a different shampoo, but all of it is manageable.
Dry, itchy scalp
Indoor heating takes the humidity down to somewhere around fifteen percent. Skin loses water to dry air, and scalp is skin. That tight, itchy feeling from January onward is usually dryness rather than dandruff, and the two want opposite treatments — an anti-dandruff shampoo on a dry scalp makes it worse.
What helps:
- Wash less often, and not as hot. Every second or third day in winter, with water that is warm rather than hot. Hot water strips the oil that is the only thing standing between your scalp and the air.
- Condition even if you have short hair. It is for the scalp, not the length.
- A humidifier in the bedroom. Unglamorous, and the single most effective thing on this list. Eight hours a night of air that is not desiccating you.
If you have actual flaking that is greasy rather than dry, and it comes back within days of washing, that is a different problem and worth a pharmacist rather than a barber.
Hat hair
A toque flattens hair against your head for eight hours and the hair keeps the shape. There is no product that beats physics here, but the cut makes a difference.
What survives a toque: shorter, with texture through the top. A textured crop or a fade with some point-cutting into the top recovers when you take the hat off, because the shape is in the cut rather than in where you placed it that morning.
What does not: anything longer that relies on being styled into position — a side part, a quiff, anything with a defined line. It goes in under the hat and it does not come back out.
Put the hat on last, not first, and let your hair dry fully before it goes on. Damp hair under a toque sets flat and stays flat, and it is also how you end up with an itchy scalp.
Static
Dry air plus a wool hat is a capacitor. Conditioner helps, a tiny amount of oil or balm on the ends helps more, and a hat that is not pure synthetic helps most.
The one that matters in February
Do not go outside with wet hair at minus twenty. Water expands when it freezes, and it does that inside the hair shaft. It is not a myth and it does real damage to the cuticle. Ten minutes with a towel is worth it.
Cut length through winter
Most people should go slightly shorter from November through March, not longer. Shorter hair dries faster, survives the hat, and does not need styling that the hat is going to undo anyway.