How it works

Five steps from reconstitution to daily ritual.

Agonist takes the spreadsheet math, ChatGPT back-and-forth, and site-rotation guesswork out of your peptide protocol.

Three amber pharmaceutical vials with gold caps precisely aligned on a cream marble shelf in morning light — the apothecary aesthetic of the Agonist library.
  1. 01

    Register the vial

    Scan or enter the vial label. Agonist remembers peptide amount, BAC water, concentration, reconstitution date, and stability window.

  2. 02

    Build the protocol

    Set dose, route, timing, frequency, cycle length, and notes. The app turns your plan into a daily checklist instead of another spreadsheet.

  3. 03

    Follow Today

    Open one screen in the morning: what to pin, how much to draw, where to rotate, and what needs attention.

  4. 04

    Rotate sites

    Track injection zones over time so you are not guessing whether you hit the same abdomen quadrant three days in a row.

  5. 05

    Review patterns

    See protocol adherence, side effects, photos, notes, and biomarker trends together. Enough context to have a better conversation with your clinician.

Start with the math before signing up.

Run any reconstitution math you have today in the browser. Same math as the iOS app. No account needed.