Can I not buy peptides on here?

I’ve been a developer for 7 years and I’m currently building a peptide tracker app. I have half life graphs, dose reminders, vial tracking, protocol tracking, and a reconstitution calculator. But I’d love to know what you would want in it to use it daily? Here are screenshots of what the app looks like so far. Also, I’m looking for a few beta users to test the app for free. If you're interested in the beta, feel free to comment below and I'll send you an invite. (Mods, lmk if this kind of post isn’t allowed and I’ll delete it myself)