Track Your Retatrutide Protocol
The first tracker built for the triple-agonist. Log doses, monitor weight, and track your body's response to GLP-1/GIP/glucagon activation.
GIP / GLP-1 / Glucagon Triple Agonist — Currently in Phase 3 Clinical Trials
Regimen is the retatrutide tracker app for early adopters tracking this next-generation triple-agonist. Retatrutide targets GLP-1, GIP, and glucagon receptors simultaneously — a mechanism that clinical trials show produces significant weight loss. Regimen helps you log every dose, track your weight and body composition changes, monitor side effects, and see how this novel medication affects your health metrics. Whether you're in a clinical trial or accessing retatrutide through other channels, Regimen tracks it — with compound data built on published pharmacokinetic studies. Free — every feature unlocked for your first medication. No paywall, no trial, no credit card. 4.9 stars.
Retatrutide is uncharted territory. Track everything.
A triple agonist in Phase 3 trials means you're early:
No FDA-approved dosing guidelines yet — you're relying on clinical trial protocols and compounding pharmacies
Tracking a compound with three mechanisms of action (GIP + GLP-1 + glucagon) and no established community dosing norms
Documenting your experience when there's barely any real-world data to compare against
Dose with precision
Regimen handles the complex math so you don't have to. Two built-in calculators give you exact numbers every time.
Peptide reconstitution calculator
Input your vial size, bacteriostatic water volume, and desired dose. Regimen tells you exactly how many units to draw on your syringe.
mL dose calculator
Enter your prescribed dose (mg) and concentration (mg/mL) to get the precise injection volume. Perfect for testosterone and oil-based compounds.
Never miss a dose. Never miss a cycle.
Stay consistent with zero effort. Regimen supports every dosing schedule you could need, with smart reminders to keep you on track.
Every schedule you need
Daily · specific days · split-week · every X days · twice daily · as-needed. Injections, pills, creams, sprays. Your protocol, your way.
Cycle management
Set your cycle duration and get alerts when it's time to cycle off or begin again. No more mental math or calendar counting.
See what's actually working
Correlate every compound and dose change against real health data. Stop guessing which protocol is moving the needle.
Auto-sync from Apple Health & Google Health Connect
Weight, body fat, sleep, resting heart rate, and blood pressure flow in automatically. No manual logging required.
Track how you feel, not just what you measure
Log energy, sleep quality, cravings, and daily notes alongside your biometrics. See the full picture of how your protocol affects you day to day.
Correlate medications with health trends
Changed your TRT dose three weeks ago? See exactly how your weight, sleep, and heart rate responded. Every dose change is overlaid on your health charts.
Know what's in your system
See estimated concentration curves for your compounds in real time. Know if you're at peak, trough, or steady state without waiting for labs.
Pharmacokinetic modeling for 40+ compounds
Regimen uses half-life data to model absorption, peak levels, and decay for every dose you take. See how levels build up over multiple doses.
Peak, trough & steady state visibility
Understand where you are in your dosing cycle at any moment. See projected future levels based on your current schedule.
Why tracking retatrutide matters
You ARE the data
With limited real-world use, your tracked protocol is some of the most valuable retatrutide data that exists. Detailed logging matters here more than any other compound.
Triple agonist complexity
GIP + GLP-1 + glucagon means more metabolic variables. Correlating your weight, appetite, energy, and body composition against dose changes is essential.
Provider communication
Your doctor has limited retatrutide data too. Sharing your tracked dose history, weight trends, and side effect patterns makes appointments more productive.
Related Tools & Guides
What Regimen Tracks for Retatrutide
Why people are switching to Regimen
"I was juggling my peptide schedule between a notes app and my calendar, and I was constantly stressed about missing a dose. Regimen fixed all of it. The reminders and calculator are essential."
Alex T., Bio-Optimizer
"I finally feel in control of my weight loss journey. The photo comparison feature is addictive. Seeing my progress next to the tracking data motivates me way more than just the number on the scale."
Sarah K., GLP-1 User
Your data stays private
Your health data is stored securely. We never share, sell, or monetize your information. What you track is your business, not ours.
Frequently Asked Questions
Stop guessing. Start optimizing.
Your protocol deserves better than a notes app and a calendar.