About the operator
World Diaper Organization (WDO) is an independent information website personally operated by Hiroshi Yagi in Japan. It is not a public body or a manufacturer membership association. It presents information about companies and products based on publicly available sources. Listing a company does not imply its membership, affiliation, sponsorship or endorsement of WDO.
WDO is an information website that organizes and presents publicly available information about adult diapers around the world. It does not aim to sell products.
We cover adult diapers through news, country reporting, manufacturer profiles, distinctive products, and developments in materials and digital technology. An item appears on the site only after an editorial decision by Hiroshi Yagi. Finding a source does not mean we have endorsed a product or chosen the story for publication.
Independence and funding
WDO does not accept sponsorship or payment for coverage. Hiroshi Yagi makes the editorial decisions. Mentioning a company or product does not imply endorsement. Yagi also operates an adult diaper business in Japan, as disclosed on the About page.
Sources and verification
We prefer original company pages for product and company announcements. For public rules, standards, recalls, and support programmes, we seek the responsible public or standards body. We record the publisher, source link, publication date when available, and the date we checked the page.
We distinguish a manufacturer’s description from independent testing or evidence. We do not turn different companies’ absorption claims into a ranking unless the products were measured under a comparable, disclosed method. Where the manufacturer, product variant, country, or availability cannot be verified, we say so or hold the item back.
AI and human review
AI can help locate sources, prepare translations, and draft text. Before publication, the editor checks material claims against the original source and reviews the English copy. Automated discovery does not publish stories to this website.
Scope
This is product and industry information. We do not diagnose conditions, advise on treatment, or recommend a specific product for an individual’s medical needs. We report relevant limitations and safety information factually, without treating a company’s promotional claims as independent findings.
Information accuracy and corrections
We edit information using public materials from manufacturers and other sources, but it may contain errors or become outdated after we check it. Product specifications and availability vary by country, region and time. For current information, consult the official manufacturer sources linked on each page. If you notice an error, please send us the relevant WDO page and supporting source.
Verification status of individual items
- Not confirmed
- We have not verified the item and have not filled it by inference.
- Not stated on the checked official page
- The official page we checked does not provide this information.
- Official source statements differ
- Statements within an official source, or between official sources, are inconsistent. See the item’s notes for the differences.