--- title: "About ยท Peptyn" description: "What Peptyn is, who publishes it, the editorial position behind its reference articles, and what the app deliberately does not do." canonical: "https://peptyn.orlyn.ai/about" last-updated: "2026-08-23" --- # About Peptyn *What Peptyn is, who publishes it, the editorial position behind its reference articles, and what the app deliberately does not do.* An iPhone app for logging GLP-1 and peptide injections. ## What Peptyn is Peptyn records what was taken, when, and where it was injected. The body map keeps the last site you used marked, so you can see how you rotate over time. It holds a vial inventory with each vial's mg and mix date, sends reminders on the schedule you set, and exports your history as a spreadsheet. There is no account: no sign-up, no email field, no password. Dose logs are stored on your iPhone and nowhere else. Two features send anything off the device, the assistant and the vial label scanner, both to an EU-hosted endpoint with a random device id, and you are asked before the first one. ## Who publishes it Peptyn is published by Luca Diaz Hilterscheid, operating as a sole proprietor (Einzelunternehmer) in Germany. The statutory disclosure, including the registered address German law requires, is on the [Impressum](https://peptyn.orlyn.ai/legal/impressum). ## The editorial position The [reference articles](https://peptyn.orlyn.ai/articles) answer record-keeping questions. Almost everything written in this space answers them with dose arithmetic instead. These do not. Each article names its primary sources, such as an FDA label or a USP chapter, and links them at the foot of the page, so a fact can be verified against the regulator rather than against us. ## What Peptyn deliberately does not do It does not recommend a dose, a compound, a protocol, or a supplier, and it does not perform reconstitution or unit arithmetic. It does not choose an injection site: nothing in the app proposes one. The in-app assistant answers educational questions about compounds and logistics and is scope limited so that it will not suggest doses or protocols. Streaks measure logging consistency, never a health outcome. Peptyn is an educational tracking tool for adults 18 and over. It is not medical advice and not a medical device, and it does not diagnose or treat any condition. See the [Medical Disclaimer](https://peptyn.orlyn.ai/legal/disclaimer). For anything else, use the [contact page](https://peptyn.orlyn.ai/contact). --- Source: