Purchase/Contact us

"Otona no Kagaku(Science for adults) " is a series of scientific kits that will appeal to your intellectual curiosity. You can learn the principals of science by assembling and experimenting yourself. There are 2 different kinds of "Otona no Kagaku" at present.

  • Purchasing Magazines and Products

    Magazines and Products can be purchased from online shopping websites, such as
    and Amazon.com, as well as at bookstores that carry Japanese books (such as overseas branches of Japanese bookstores).

    NOTE 1:All magazine contents are in Japanese. English versions are not available.

    NOTE 2:The English instruction manuals for the supplements (PDF) can be downloaded from each product’s introduction page in this website. (An English version of the instructions may not be available for some products. In the case that it is not available, contact the email address listed below.)

  • Contact Information


    For questions regarding product content, missing or defective parts, and other questions, contact the following address.
    * Be sure to include your name and address in your email when you contact us. (This information will become necessary when we send the parts, etc.)

    Corporate Customers

    For questions regarding the sales and manufacturing of “Otona no Kagaku” and other questions, contact the following address.