Privacy policy

This English explanation is automatic translation.
Therefore the Japanese version shall take precedence,If there are any discrepancies, inconsistencies or contradictions between the displayed translation and the Japanese version.

1. Management of Customer Personal Information

Brain Sleep Co., Ltd. (hereinafter "the Company") respects the personal information provided by customers through the website operated by the Company (hereinafter "the Site"). To protect customers' personal information, the Company has established a management system centered on a Personal Information Protection Officer, along with appropriate rules for handling personal information. We operate under these rules, provide employee training, conduct audits, and continuously review and improve our practices.

With respect to our information systems, we store personal information securely on servers protected by security systems, and we strive to prevent unauthorized access, loss, destruction, tampering, or leakage of personal information. The Company may revise this policy from time to time to reflect changes in applicable laws and regulations or business needs, and any such revisions will be posted on the Site. We encourage customers to review the most recent version of this policy each time it is updated.

2. Collection Methods and Purposes of Use of Customer Personal Information

The personal information covered by this policy includes: the customer's name, address, telephone number, date of birth, email address, occupation, credit card number and other credit-card-related information, the customer's purchase history and inquiry history regarding the Company's products, beauty- and health-related information, responses to various questionnaires, and information regarding hobbies, preferences, lifestyle, and similar matters.

In order to use services on the Site — including the members-only page, online shopping, information delivery by email, and applications for giveaways and other promotions — we collect personal information such as the customer's email address, name, address, and date of birth, to the extent necessary, through means such as the web, postcards, fax, or forms completed in stores.

We may receive information relating to customers (personal information related to an individual), such as identifiers and behavioral history, from third parties who do not hold information identifying the customer by name or otherwise. We acquire such information as personal information by linking it with the customer's personal information that we manage, and — except where a separate purpose is indicated — we may use this information for the purposes described above. Specifically, we may acquire and link with the personal information we manage: cookies and similar technologies, mobile advertising identifiers, email addresses and phone numbers (including those that have undergone irreversible conversion), advertising-delivery-related logs such as the number of ad impressions, website browsing and search history, purchase history (including purchases at physical stores), location information and other behavioral history, TV-viewing-related logs, and similar data. In such cases, we handle the information appropriately as personal information in accordance with applicable laws and regulations.

We use this information for the following purposes. The Company will not use such information beyond these purposes.

  1. To manage users of the Service
  2. To verify the identity of users and to prevent unauthorized use of the Service
  3. To respond to notices, communications, inquiries, and other matters relating to the Service
  4. To conduct research and analysis for the provision, expansion, improvement, and development of new features of the Service
  5. To gather customer feedback regarding the Service
  6. To notify customers of, or provide, new services offered by the Company and its group companies
  7. To ship ordered products, respond to inquiries, provide after-sales support, and provide information on new products and services
  8. To deliver and send advertisements, promotions, sales promotions, content, and similar materials based on attribute information, behavioral history, device information, location information, opinions, requests, and inquiries held by the Company and its group companies (including information about the Company's services, email newsletters, product guides, and direct mail)
  9. To convert information into statistical data that does not identify individuals, and to use and disclose such data in order to explain the Company's services to potential business partners, advertisers, and other third parties, and for other lawful purposes

3. Outsourcing and Entrusting Customer Personal Information to Affiliated Companies

Except in any of the following cases, the Company will not disclose customers' personal information to third parties:

  1. Where the customer has given prior consent
  2. Where the information is outsourced to an external party within the scope necessary to achieve the purpose of use
  3. Where disclosure is required by law
  4. Where necessary to protect a person's life, body, or property, and obtaining the customer's consent is difficult
  5. Where particularly necessary for improving public health or promoting the sound development of children, and obtaining the customer's consent is difficult
  6. Where cooperation is required for a national or local government body to carry out duties prescribed by law, and obtaining the customer's consent would be likely to impede the performance of such duties
  7. Where the information is provided to a party listed within the scope of joint users described in "6. Joint Use of Personal Information" below

With respect to our outsourcing partners, we enter into confidentiality agreements with them and entrust customers' personal information only to the minimum extent necessary to carry out the relevant operations, under our strict management. In addition, in order to improve our services in the future, we may entrust related information such as customers' names, addresses, and dates of birth to affiliated companies with which we have entered into confidentiality agreements.

In such cases, we take responsibility for instructing that customers' personal information be handled within the scope of our purposes of use and that appropriate security management measures be implemented, and we provide the necessary and appropriate supervision to protect customers' personal information. In addition, if we are required by a public authority to submit customers' personal information pursuant to laws and regulations, we may submit such information. In such cases, we use highly secure methods for the transfer to prevent leakage of, or damage to, personal data.

4. Advertising Delivery Based on Matching of Personal Information

We exchange information for identifying individuals with our business partners (including the overseas recipients described in "5. Transfer of Personal Information Overseas" below). We match and analyze personal information we hold — such as customers' browsing and purchase history, hashed email addresses, hashed phone numbers, cookie IDs that can be cross-referenced with other personal data within the Company, advertising identifiers (ADID/IDFA), and postal codes — against personal information held by our business partners. We use the results to deliver advertisements for new products and services tailored to customers' interests and preferences, and to improve our services.

5. Transfer of Personal Information Overseas

In order to achieve the purposes of use described in "2. Collection Methods and Purposes of Use of Customer Personal Information" and "4. Advertising Delivery Based on Matching of Personal Information" above, the Company may need to provide personal information to the businesses listed below, located overseas, as well as to other businesses located overseas.

List of Overseas Recipients

Google LLC

Meta Platforms, Inc.

6. Joint Use of Personal Information

The Company jointly uses customers' personal information as follows.

6-1. Method of Collection and Items of Personal Information Subject to Joint Use

The collection methods and personal information described in "2. Collection Methods and Purposes of Use of Customer Personal Information" above.

6-2. Scope of Joint Users

  • ANGFA Co., Ltd.
  • Medical Corporation Well-Aging
  • Medical Corporation Suisoukai
  • Medical Corporation Real Age Seisaikai
  • Gran Salto Co., Ltd.
  • Brain Health Lab (General Incorporated Association)

6-3. Purposes of Use by Joint Users

Research and analysis of usage data (including case studies and incident data); research and development of various products and services; provision of information regarding, and offering of, various products and services to customers, and related decision-making; billing and collection of usage fees; investigation of, and response to, service-related incidents; response to customer inquiries and complaints; questionnaire surveys; business and management analysis; internal audits; and other related operations and administrative work.

6-4. Name of the Party Responsible for Managing Jointly Used Personal Information

2-7-2 Marunouchi, Chiyoda-ku, Tokyo
ANGFA Co., Ltd., Representative Director: Mioto Yoshida

7. Inquiries to Credit Card Companies and Other Financial Service Providers

When a customer purchases the Company's products, we may make inquiries to credit card companies or other financial service providers regarding the customer's credit card number and related information, name, and similar details, for purposes such as settling payment.

8. Disclosure, Correction, and Suspension of Use of Customer Personal Information

On the Site, customers may freely check and change their own personal information. In addition, when a customer requests disclosure, correction, suspension of use, or the exercise of other rights with respect to their personal information, we will verify the customer's identity and respond promptly. The Company will not make any changes without the customer's instructions and consent.

9. Handling of Customer Personal Information

With respect to the handling of customers' personal information, the Company will periodically review and improve the matters described above in order to further enhance its practices. Personnel engaged in managing and using acquired information strictly manage the information obtained from customers and exercise sufficient care in handling it to prevent unauthorized access, loss, leakage, tampering, and similar risks to personal information. The main measures are as follows.

Organizational and Personnel-Based Security Measures

  • We provide employees with regular training on matters to be observed in handling personal data.

Physical Security Measures

  • In areas where personal data is handled, we manage employees' entry and exit and restrict the equipment they may bring in, and we implement measures to prevent unauthorized persons from viewing personal data.

Technical Security Measures

  • We implement access controls to limit the scope of personnel who may access personal information, and the scope of the databases handled.
  • We have introduced mechanisms to protect the information systems that handle personal data from unauthorized external access and malicious software.

10. Contact for Inquiries Regarding Customer Personal Information

For comments, questions, complaints, or other inquiries regarding the handling of personal information, please contact us using the information below.

  • Email inquiries: customer@brain-sleep.com
  • Telephone inquiries: Customer Service Center 0120-088-885 (Business hours: 9:00 a.m.–6:00 p.m., excluding the New Year holiday period)

This document was last updated on July 14, 2026.
The Company may revise all or part of this Privacy Policy. In such cases, the revised Privacy Policy will be posted on the Company's website.

Address of the Personal Information Handling Business Operator
2-7-2 Marunouchi, Chiyoda-ku, Tokyo

Name of the Representative of the Corporation that is the Personal Information Handling Business Operator
Brain Sleep Co., Ltd., Representative Director: Atsushi Hirota