Value Village ／ Beauty
This answer is a draft. It stays unpublished until legal review and source verification are complete.
The idea that "air-drying is kinder to your hair" is deeply rooted in many countries. In Japan most people bathe daily and wash their hair in the evening, so drying it before bed is a fixed habit, and a good deal of practical know-how about hair dryers has built up around it.
| Item | Guide |
|---|---|
| Air temperature at the nozzle | Around 100–120°C on many models (at close range the hair surface heats up very fast) |
| Distance from the hair | 15–20 cm |
| Hair surface temperature | Keep the dryer moving so it does not exceed 60–70°C (the approach taken in product manuals) |
| Order | Roots → mid-lengths → ends, then cool air to settle the surface |
| Saving time | Towel-dry carefully (press with a highly absorbent towel); choose a model with strong airflow |
[Verify] Temperatures and distances are guides from major manufacturers' instruction manuals. Check accident cases against NITE's product accident database.
The longer hair stays wet, the longer it stays weak against friction. The scalp also stays damp. Drying quickly is generally described as easier on both hair and scalp.
Holding hot air on one spot raises the surface temperature and leads to dryness and coarseness. Keep moving and spread the heat across the whole head.
The ends dry easily; the roots are the hardest part to dry. Starting from the roots avoids over-drying the ends.
A final blast of cool air settles the opened surface, adding shine and hold. It also cools a scalp that has built up heat.
Electric shock near water, frayed cords and dust in the intake are causes of accidents. NITE's advice is to unplug after use and not wrap the cord around the body (a cause of breaks at the base of the cord).
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https://www.nite.go.jp/jiko/chuikanki/
https://www.meti.go.jp/policy/consumer/seian/denan/
https://www.dermatol.or.jp/qa/qa17/index.html
⚠️ Editorial note: the source URLs above were identified by search. Our working environment cannot reach go.jp domains, so the contents have not been checked against the text. Verify every source before publication and record who checked it and when.
What we share here are ideas and everyday practices passed down among people living in Japan, together with general information drawn from public sources. They are not official recommendations, and they are not professional instruction. Practices vary between households and regions.
This is general information. Results vary from person to person and depend on your own conditions and surroundings.
Please decide for yourself, using your own judgement, whether any of this suits your situation. We cannot accept responsibility for any damage, loss or injury arising from following this article.
Cosmetics are not medicines and are not meant to diagnose, heal or prevent any condition. If your skin reacts, stop using the product and see a dermatologist.
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