Editorial Policy
We disclose how our articles are produced and where our product information comes from, so readers can judge the nature of the information for themselves.
How we select products
For each product category, we select representative products by referring to ratings, review counts, and sales trends on Amazon.co.jp. We do not accept payment or free products from manufacturers in exchange for ranking placement.
Sources of product information
Product images, product links, and prices shown in our articles are real data retrieved from the official Amazon Creators API. When a field cannot be retrieved from the API, we hide it rather than filling it with an estimate.
Because prices change, we do not state them in the article text, and any price shown reflects the value at the time it was retrieved. Please check the current price on the linked Amazon page.
Star ratings and review counts are not available through the API we use, so we do not display them. Please check actual ratings on the Amazon product page.
How articles are written
Article text is written based on manufacturer-published specifications and general knowledge about the product category. We use AI in our writing and editing process.
We do not conduct hands-on testing or measurement of purchased units. We do not publish claims based on first-hand verification such as "we measured this ourselves" or "we used it for a month." For details on real-world feel and unit-to-unit variation, we recommend also checking Amazon reviews and official manufacturer information.
Updates
We continue to expand and revise articles after publication. Revised articles show an update date near the top of the page.
Affiliate relationship
This site participates in the Amazon Associates Program and earns a referral fee on qualifying purchases made through our links. Whether or not we earn a fee does not change how we evaluate a product.
Reporting errors
If you find an error in our content, we would appreciate you letting us know. We will verify and correct it.