Last updated: September 17, 2026

Privacy & Data

PepRecon is a small research-and-education project run by an individual (DREGS). It is built to need as little of your data as possible: the calculators run entirely in your browser, there are no user accounts, and there is no advertising or third-party analytics tracking. This page explains the few cases where data does leave your device, what is stored, and how to have it removed. Two companion pages cover the rest: our Terms of Use, and a Consumer Health Data Privacy Notice for Washington and Nevada residents.

The short version

• Calculators run locally. What you type into a calculator stays in your browser and is not sent anywhere, unless you deliberately create a share link.
• No accounts. We never ask for your name, email, or a password to use the tools.
• No ad tracking. No advertising cookies, no analytics profiles, no data sold to anyone.
• No third-party requests. Since September 2026 the pages load nothing from any outside company, not even fonts. Reading PepRecon tells no one but us that you were here.
• You can delete anything you created. See Deleting your data.

Share links

Most calculators have an optional Save / Share button. Only when you click it do the values for that calculation get sent to our server and stored under a random link ID, so the link can reproduce the result later. For most calculators this is just numbers (vial size, dose, volumes). For the Plan and Rotate tools a share link can include a titration schedule or an injection-site log you built. Share links contain no name, email, or account, and are stored until you ask us to remove one.

Some tools have no server side at all. Chart, Convert, Label, Optimize and the Labs price comparison do their work entirely in your browser, and Inventory keeps your vials in your browser's local storage until you deliberately create a share link.

COA Reader uploads

If you use the COA Reader and upload a certificate (image or PDF), that file is sent to an AI service (Anthropic) to read the printed text, and the original file plus the extracted fields are stored so the shareable result works. Upload only lab certificates, not personal documents.

Logs, cookies, and rate limiting

• Server logs. Like any website, our server briefly records standard request information (including IP address, timestamp, and browser user-agent) to operate the service, diagnose problems, and prevent abuse. Rate limiting uses your IP address in memory to stop flooding.
• Cookies. The site sets no cookies at all. Your light or dark theme choice, and anything a tool remembers for you, is kept in your browser's local storage and never sent to us. No advertising or cross-site tracking cookies, so there is nothing here to ask your consent for.

Who else touches data

We keep third parties to the minimum needed to run the site:

• Hosting (AWS). The site runs on Amazon Web Services, which processes traffic on our behalf.
• Anthropic. Only for COA Reader uploads, to extract text from the certificate you submit.

That is the whole list. Until September 2026 the pages also pulled fonts from Google's servers, which meant Google saw your IP address every time you opened a page. Those fonts are now served from our own domain, so no third party is contacted when you browse the site.

We do not sell your data, and we do not combine it into advertising or marketing profiles.

Deleting your data

Because there are no accounts, the only data tied to you is anything you chose to save (a share link, or a COA result). To have a share link or COA result removed, email us the link and we will delete it. You can also ask what, if anything, is stored for a link you created. We answer within 45 days and usually within a few days.

Children

PepRecon is intended for an adult research-and-education audience and is not directed to children.

Not medical advice

PepRecon is a research and education resource. Everything here is for informational and laboratory-research purposes only. It is not medical advice, not a recommendation to use any compound, and not for human consumption. Several peptides discussed on the site are not FDA-approved and their regulatory status can change. Consult a licensed healthcare provider before making any decision.

Changes to this notice

If our data practices change, we will update this page and the date at the top.