For GLP-1 Users
Your doctor gave you a starting dose. The protocol is yours to manage.
Semaglutide, tirzepatide, compounded GLP-1s — titration schedules, injection logs, side-effect notes, and the body-composition picture your scale can't give you. Built for patients who read the research.
Start tracking free →The hidden variables
GLP-1 is a 168-hour half-life. Most people track it with a notes app.
Titration confusion
When did you last increase the dose? How long were you at 0.5 mg before moving to 1 mg? Most patients can't answer this from memory.
Side-effect attribution
Nausea on day 3 after a dose increase. Was it the dose? What you ate? A new supplement? Without a log, you're guessing.
Body composition blind spots
Weight is down 22 lbs. Muscle mass? Unknown. Metabolic rate? Unknown. The scale is not your progress metric — it's one variable.
Compounded-dose math
Compounded semaglutide comes in variable concentrations. Converting mg → units drawn → dose delivered requires a calculator you don't have.
What My Pep Calc does
The informed-patient dashboard your clinic doesn't provide.
Titration timeline
Chronological dose history with date stamps. See exactly when you moved from 0.25 to 0.5 to 1 mg and what happened after each change.
Compounded-dose calculator
Enter your vial concentration (e.g., 5 mg/mL) and target dose (e.g., 0.5 mg) → get exact units to draw. Works for any GLP-1 concentration.
Half-life tracker
Semaglutide has a 168-hour half-life. See how active concentration changes between weekly injections — useful context for timing meals and exercise.
Side-effect log
Timestamped notes tied to dose events. Spot patterns between dose increases, specific foods, and symptoms.
Site rotation
Abdomen, thigh, upper arm — rotate systematically to minimize injection-site reactions. The app tracks where you last injected.
Protocol Coach (Pro)
Ask questions about your specific titration, GLP-1 interactions, and what the research says — with your own data in context.
"Here's what I wish I'd known at Month 3: you need a log before you need answers. The log is what turns 'I feel different' into something you can bring to your provider."
Rachel C. — 16 months into her GLP-1 protocol, Founder member
Free to start. Takes 90 seconds.
Track your GLP-1 for free. Upgrade when you want the half-life chart, correlation layer, and Protocol Coach.
My Pep Calc is a tracking tool, not a medical service. Nothing here is medical advice. Medical Disclaimer