Value Village / Clothing

What are the common misunderstandings about using fabric softener?

This answer is a draft. It stays unpublished until legal review and source verification are complete.

The answerThe biggest misunderstanding is "the more softener, the better it works". Beyond the stated dose there is no extra effect, and you are more likely to get reduced absorbency, residue on the skin and scent that affects the people around you.

Arguments over the scent of fabric softener are happening in many countries. Japan has gone as far as coining a word for it, kōgai (香害, "fragrance harm"), and in 2021 five government ministries and agencies, including the Consumer Affairs Agency and the Ministry of Health, Labour and Welfare, jointly produced a poster about it. Japanese softeners are often more strongly scented than newcomers expect, so this is worth knowing.

The rules and the numbers

Key pointReason
Stick to the stated doseExcess reduces absorbency and leaves residue
Do not add it with the detergent (use the automatic dispenser)Softener ingredients cancel out the detergent
Go easy on towels and underwearReduced absorbency, residue on the skin
In shared spaces such as workplaces and schools, be considerate about scent strengthThe point of the five-ministry poster
[Verify] Check the month and year of the five-ministry poster, and the National Consumer Affairs Center's enquiry figures, against each body's published material.

Misunderstanding 1|Softener boosts cleaning power

Softener has no cleaning power. It coats the surface of the fibres to change the feel and reduce static.

Misunderstanding 2|Adding it with the detergent saves time

Detergent (anionic) and softener (cationic) cancel each other out if added together. The system is designed for softener to go in at the rinse stage, via the automatic dispenser (自動投入口) on the machine.

Misunderstanding 3|The fluffier the towel, the better

The coating reduces absorbency. Many people in Japan use softener on towels only every few washes rather than every time.

Misunderstanding 4|Lingering scent is proof of cleanliness

Scent is proof of ingredients left behind, which is a separate matter from cleanliness. Some people become unwell from fragrance; this has been recognised officially and led to the five-ministry campaign.

Misunderstanding 5|Use the same amount on a baby's underwear

Underwear touches the skin directly. Even with products sold as mild, keep to the dose, and the cautious choice is to try without softener first and see how the skin reacts.

---

Sources

https://www.caa.go.jp/policies/policy/consumer_safety/other/

https://www.kokusen.go.jp/news/data/n-20200409_1.html

https://www.caa.go.jp/policies/policy/representation/household_goods/guide/zakka/

⚠️ 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.

About this article

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.

Follow the care label and the maker's instructions for any garment, shoe or bag. For expensive or sentimental items, ask a specialist cleaner or repairer.

Sources

Tell us if this has changed

Approved contributions keep the contributor's name, shown in five languages.

Related questions

Other languages:日本語 / 简体中文 / 繁體中文 / 한국어

Value Village is not a government body. Always confirm procedures on the official site.
Written by Value Village from public sources. Nothing here is reproduced from another site.