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Privacy Policy

How we collect, use, and protect your information when you use the Peptide List.

Last updated: May 2026

1. Introduction

Longevity Insights LLC ("we," "us," or "our") operates this website (the "Site"). This Privacy Policy explains how we collect, use, disclose, and safeguard your information when you use the Site. Please read this policy carefully. By using the Site, you consent to the practices described herein.

2. Information We Collect

Automatically collected information

We may collect certain information automatically when you visit the Site, including your IP address, browser type, operating system, referring URLs, pages visited, and time spent on pages. This data is collected through Vercel Analytics and standard server logs.

API access logs

When you use our authenticated JSON API (see Terms of Service §7), we may log each request to support security, abuse prevention, and aggregate usage analytics. Logged fields are limited to: an identifier for the API key used, the requesting IP address, the request timestamp, the path requested, and the HTTP response code. We do not log request bodies (the API is read-only) or response payloads. We do not associate API logs with the email addresses on file unless we are investigating a specific abuse report or legal request.

API key contact information

When you request an API key, we collect the email address you contact us from and any context you provide about your intended use. This is used solely to issue the key, to reach you about service-affecting changes, and to enforce the Terms of Service. We do not add API requesters to marketing lists.

Information we do NOT collect

We do not collect health information, medical history, treatment preferences, or any other sensitive personal data. The Site has no user accounts, profiles, or forms that solicit personal health information.

3. How We Use Your Information

We use the information we collect to:
  • Authenticate and authorize access to the Site and the JSON API
  • Monitor and analyze usage patterns to improve the Site and the API
  • Maintain the security and integrity of the Site and the API, including detecting and preventing abuse of API keys
  • Comply with legal obligations
We do not use your information for advertising, marketing, or to build user profiles for commercial purposes.

4. Information Sharing and Disclosure

We do not sell, trade, or rent your personal information to third parties. We may share information only in the following circumstances:
  • Service providers: With trusted third-party services (such as Vercel for hosting and analytics) that assist in operating the Site, subject to their own privacy policies
  • Legal requirements: When required by law, regulation, legal process, or governmental request
  • Safety: To protect the rights, property, or safety of Longevity Insights LLC, our users, or others

5. Data Retention

Analytics data is retained in accordance with Vercel's data retention policies. We do not maintain persistent user profiles or long-term personal data storage beyond what is necessary for Site operation.

6. Data Security

We implement reasonable administrative, technical, and physical security measures to protect your information. The Site is served over HTTPS. However, no method of transmission over the internet or electronic storage is completely secure, and we cannot guarantee absolute security.

7. Cookies and Tracking

The Site may use cookies and similar technologies for analytics purposes. These are essential for the functioning of the Site. We do not use advertising cookies or cross-site tracking. You can control cookie settings through your browser, but disabling cookies may affect your ability to use the Site.

8. Third-Party Services

The Site uses the following third-party services:

9. Children's Privacy

The Site is not intended for individuals under the age of 18. We do not knowingly collect personal information from children. If we become aware that we have collected information from a child under 18, we will take steps to delete that information promptly.

10. Your Rights

Depending on your jurisdiction, you may have the right to:
  • Access the personal information we hold about you
  • Request correction of inaccurate information
  • Request deletion of your information
  • Object to or restrict certain processing of your information
To exercise any of these rights, please contact us using the information below.

11. California Privacy Rights

If you are a California resident, you have additional rights under the California Consumer Privacy Act (CCPA), including the right to know what personal information is collected, the right to request deletion, and the right to opt out of the sale of personal information. We do not sell personal information. To make a CCPA request, contact us at the address below.

12. Changes to This Policy

We may update this Privacy Policy from time to time. Changes will be posted on this page with an updated "Last updated" date. Your continued use of the Site after changes are posted constitutes acceptance of the updated policy.

13. Contact Us

If you have questions about this Privacy Policy or our data practices, email us at hello@peptidelist.org or visit the Contact page.