Value Village ／ Beauty
This answer is a draft. It stays unpublished until legal review and source verification are complete.
With the spread of gel nails, complaints about nail problems have risen in Japan too. In overseas communities the recurring question is "do nails need a rest period?". This article sets things out, including a case where the Consumer Affairs Agency (Japan's consumer watchdog) issued a public warning.
| Item | Details |
|---|---|
| Consumer Affairs Agency warning (2023) | More complaints of rashes, nail discolouration and nail separation from DIY gel nails. Allergy (to HEMA and other acrylates) from under-cured gel touching the skin was identified |
| Remover | Acetone strips oil from the nail and surrounding skin. Wash your hands and moisturise afterwards |
| Removing gel | Do not force it off (it takes the nail surface with it). Soak it off with solvent. Having it removed at a salon is the safe side |
| Nail growth rate | Fingernails grow about 0.1 mm a day; full replacement takes about six months |
| Legal category of polish and remover | Cosmetics. Claims within the 56 items, such as "protects the nails" and "beautifies the nails" |
[Verify] Check the year and content of the Consumer Affairs Agency warning "Skin disorders from DIY gel nails". The growth rate is a general dermatology description.
Nails do not breathe (they are a type of keratin). "Resting" makes sense as letting the nail recover from the drying and thinning caused by remover, solvent and filing, and as such it is a reasonable habit.
It takes layers of the nail surface with it, leaving the nail thin and weak. The rule is to soak it off with solvent, and if that is hard to do yourself, go to a salon.
Under-cured gel on the inside touching the skin can cause allergy. The Consumer Affairs Agency's points are: wipe off any gel on the skin before curing, and keep to the curing time on the label.
White spots on the nails (punctate leukonychia) are generally described as most often caused by a light knock to the nail base, not as evidence of poor nutrition. Spreading discolouration, dark lines or deformed nails should be checked at a dermatology clinic (covered by Japanese health insurance).
Soaking a cotton pad and resting it on the nail for several tens of seconds is generally described as faster than rubbing, and easier on the surrounding skin. Do not forget ventilation. Acetone-free products dry the nail less but tend to be less effective at removing polish.
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https://www.caa.go.jp/policies/policy/consumer_safety/caution/
https://www.kokusen.go.jp/
https://www.dermatol.or.jp/qa/
⚠️ 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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