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Privacy

Privacy

How Peptides Codex handles visits, messages, subscriptions and display preferences.

Policy published October 5, 2026

Browsing and site measurement

The site uses Vercel hosting, Web Analytics and Speed Insights to deliver pages and measure visits and performance. Requests can expose technical information such as an IP address, browser and requested URL to the hosting provider. Search filtering happens in your browser; a results-page URL can contain the selected search. Analytics URLs are stripped of query text and fragments. Site interaction events use public compound identifiers, language, counts and flags; they do not send your search text, contact message, email address or pasted COA text as event properties.

Contact and research pilot requests

If you submit a contact or research pilot form, your email address, optional name and message are sent through Resend to the configured editorial inbox so the operator can respond. A pilot request also includes the workflow you selected, language and your permission to be contacted about the pilot. It does not subscribe you to the newsletter or authorize payment. Pilot analytics record only language and the selected workflow, never your email or message. Do not include sensitive medical information. The service also uses a temporary, server-memory identifier derived from the request IP to limit repeated submissions.

Newsletter subscriptions

If you subscribe when the mailing service is available, your email address is submitted to the configured Resend contact list. The form indicates whether the request was accepted. Use the unsubscribe option in a delivered newsletter or contact the publisher for help.

Preferences and browser storage

Changing language sets a NEXT_LOCALE preference cookie with a one-year lifetime. Choosing a theme stores a theme preference in your browser's local storage until it is changed or cleared. The browser may cache site assets for faster visits. You can remove these preferences and cached assets through your browser's site-data controls.

Retention and your requests

Messages and subscription records can remain in the operator's inbox and service-provider systems. We do not promise an automatic deletion period that has not been configured and verified. Contact the publisher to request access, correction or deletion of information you submitted; include enough detail to identify the record without sending unnecessary sensitive information.

External services and links

Vercel and Resend process information under their own service arrangements and privacy policies. External research, regulator and other websites linked from this site have their own practices. This website has no visitor accounts or payment checkout in its current educational interface.

Provider privacy policies

Vercel · Resend

Contact the publisher