Terms of Service

1. Acceptance

These terms govern all Forgestack services (quiz, newsletter, contact form). By using this site, you agree to these terms.

2. Service scope and disclaimer

Recommendations are reference information based on publicly available scientific literature and user-provided inputs. They are not intended for medical diagnosis, treatment, or prevention.

If you have health conditions, take medication, are pregnant or nursing, or are a minor, consult a physician or pharmacist before starting any supplement. Forgestack assumes no liability for decisions made based on information from this site.

3. Regulatory compliance

Forgestack complies with Japanese pharmaceutical and consumer protection laws. No supplement is marketed with drug-like efficacy claims.

4. Affiliate disclosure

Product links include affiliate programs (iHerb Rewards, Amazon Associates, A8.net, MyProtein, Rakuten). We may earn commissions on purchases, but this never affects the price you pay. Recommendations are based solely on scientific evidence and your quiz answers — affiliate commission rates have zero influence on ranking.

5. Prohibited conduct

• Interfering with the operation of the site
• Commercial reuse of site content without permission
• Infringing the rights of other users or third parties
• Submitting false information through forms

6. Intellectual property

All text, design, and logos belong to Forgestack. Supplement names and product images are trademarks of their respective owners.

7. Service changes

We may change, suspend, or terminate the service without notice. We are not liable for any damages arising from such changes.

8. Governing law

These terms are governed by Japanese law. Any disputes fall under the exclusive jurisdiction of the courts located at our registered address.

9. Amendments

We may update these terms at any time. Updates take effect when published on this page.