Privacy policy
What PeptideCompare collects, why, and how to get it removed. Last updated 2026-11-13.
Browsing the site
- Server logs. Our web server records each request (IP address, browser, page, referring page and time) to keep the site running, block abuse and count visits and clicks out to vendors.
- Analytics. Google Analytics shows which pages help people. In the EU, UK and Switzerland it stays off unless you allow it.
- Your browser's storage. Price alerts, planner contents and similar preferences are kept in your own browser (local storage) and never sent to us.
- Vendor links. Some links to vendors are affiliate links. When you follow one, the vendor (not us) may set its own cookies to credit the referral. See how the site makes money.
Signing in to post a scam report
Posting a scam report requires a verified email address, so reports come from real buyers. You can sign in with Google or with a 6-digit code we email you.
- With Google we receive your email address and name from Google, and nothing else: no password and no access to your Google account.
- With an email code we send the code through our email provider (Resend). Codes expire after 15 minutes.
- We store your email address, how you signed in, and when. A signed cookie (
pc_auth, 90 days) keeps you signed in. Sign-in attempts are rate-limited using a one-way hash of your IP address. - Reports keep the text, vendor, order details and any file you attach. Each report is reviewed before it's published. Your email address is never shown publicly. Vendors named in a report may publish a response.
Email updates
When you sign in, a box to receive PeptideCompare updates is ticked by default; untick it if you don't want them. The newsletter sign-up form works the same way. Every update includes an unsubscribe link, and unsubscribing takes effect immediately. We don't sell or rent email addresses.
Forum
The forum runs on our own server (Discourse). Accounts are created with an email address and password and confirmed by email. Posts are public, and your email address is not.
Other submissions
Price and lab-report submissions through the submit page keep what you send plus a one-way hash of your IP address, to limit spam.
Who processes data for us
- Our own server, which hosts the site, forum and database.
- Google, for sign-in (only if you choose it) and analytics (where allowed).
- Resend, for delivering sign-in codes and forum email.
Your choices
To see, correct or delete what we hold about you, or to remove a report you posted, email privacy@peptidecompare.net from the address concerned. We reply within 30 days. Data is kept while the related account, report or subscription exists, and server logs are rotated regularly.
The site isn't directed at anyone under 18.