Tracking Collagen peptides
The skin-hair-joints powder of the moment. Claims outrun evidence routinely; a personal record at least keeps your own experiment honest.
The did-it-help record
If you're running the experiment, run it properly: log the start date, keep skin and joint entries steady, and read the record at three months instead of squinting at the mirror at three weeks.
Perity informs, never prescribes — decisions belong with you and your clinician.
Educational content, written and maintained by Perity (founder: EiEi), grounded in the sources cited in Perity's Learn library. It is not medical advice, and Perity never interprets your data or recommends treatment. Last reviewed 2026-07-09.
Perity is in private beta on iPhone. Join the waitlist for early access — no real name required.