Value Village ／ Beauty
This answer is a draft. It stays unpublished until legal review and source verification are complete.
"How many years does perfume keep?" and "should I keep it in the fridge?" come up again and again on overseas forums. Japan's hot, humid summers and strong sunlight make the question more pressing here. This article sets out how to store a fragrance so that it keeps its scent.
| Item | Details |
|---|---|
| What degrades it | UV light, heat (30°C / 86°F and above), temperature swings, air (oxidation) |
| Where to keep it | A dark, cool place with a stable temperature (wardrobe, drawer). Bathroom, windowsill and car are unsuitable |
| Guide after opening | 1–3 years (depends on the type of scent and on storage). Citrus scents degrade fastest; woody and oriental scents tend to last longer |
| Signs of degradation | Colour darkens (yellow → amber), top notes smell vinegary or sour, scent goes flat |
| The box | Keeping it in its outer box is the simplest way to block light |
| Expiry labelling | Cosmetics need no expiry date if they are stable for 3 years or more. The batch code (lot number) can sometimes be used to estimate when it was made |
[Verify] The guide for opened bottles is based on general industry and maker guidance. Check the hazardous-material handling against the Fire Service Act and airline rules, and check whether it can be posted against the latest guidance from Japan Post and each courier firm.
Taking it in and out causes condensation from the temperature difference, and the scent transfers to food. A dark place at room temperature is enough. A dark place at constant temperature, like a wine cellar, is ideal but not essential.
Steam makes the bathroom hot and humid, and a window adds UV. Every condition for degradation is present. Move it to a bedroom drawer.
It is the colour of oxidation, and the scent has changed. A sour top note means it has degraded. Some people stop wearing it on the skin and use it as a room fragrance instead.
With good storage it keeps for 1–3 years. Closing the cap firmly and putting it back in the box alone makes a difference.
Decanting from the bottle speeds up degradation. Carry only a few weeks' worth. Unopened miniatures are a different matter (unopened, they keep like the full bottle).
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https://www.mhlw.go.jp/stf/seisakunitsuite/bunya/kenkou_iryou/iyakuhin/keshouhin/index.html
https://www.jfa-fragrance.jp/
https://www.fdma.go.jp/
⚠️ 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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