Track Your Zepbound Weight Management Protocol
Built for tracking tirzepatide for weight loss — log doses, monitor body composition, and see your results at every step.
Tirzepatide (Zepbound) — Weekly Weight Loss Injection
Regimen is the Zepbound tracker app for people using tirzepatide specifically for weight management. Zepbound is the weight loss-approved version of tirzepatide — and tracking your results through its six-step titration is essential for understanding what's working. Regimen logs every dose, tracks your body composition changes, monitors side effects, and correlates your health data to your dosing timeline. See exactly how Zepbound is reshaping your body — with half-life data sourced from published clinical studies and FDA prescribing information. Free — every feature unlocked for your first medication. No paywall, no trial, no credit card. 4.9 stars on iOS and Android.
Zepbound is new. Your tracking shouldn't be guesswork.
Starting a new weight loss medication comes with real friction:
Navigating a brand-new titration schedule when there's less community knowledge to draw from compared to Ozempic or Mounjaro
Wondering if your rate of weight loss is normal for Zepbound specifically, versus other GLP-1s you've researched
Managing injection day consistency when you're still building the weekly habit
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 Zepbound matters
Build your own data
Zepbound (tirzepatide) is newer, meaning less long-term community data exists. Your own tracked protocol becomes your most valuable reference.
Titration confidence
Same powerful 6-dose tirzepatide titration as Mounjaro. Regimen tracks your schedule so you step up at the right time, every time.
Weight + body composition
Zepbound's dual GIP/GLP-1 action can affect body composition differently. Track weight and progress photos together for the full picture.
Related Tools & Guides
What Regimen Tracks for Zepbound
What to track on Zepbound
- Current dose step and the date you started it
- Pen used (log the date for inventory tracking)
- Weight (same time weekly, ideally morning fasted)
- Waist circumference (monthly)
- GI side effects: nausea, constipation, indigestion, 1-10 severity
- Appetite suppression rating (1-10)
- Energy and sleep quality
- Injection site rotation (abdomen, thigh, upper arm)
- Missed doses (log these explicitly so you can correlate side-effect rebounds)
FDA-approved Zepbound titration schedule
| Weeks | Dose | Notes |
|---|---|---|
| 1-4 | 2.5mg | Starting dose, no weight loss expected, side effect adaptation |
| 5-8 | 5mg | First therapeutic dose, weight loss begins |
| 9-12 | 7.5mg | Continued loss, common to hold here if responding well |
| 13-16 | 10mg | Standard maintenance for many users |
| 17-20 | 12.5mg | Higher dose if response is plateauing at 10mg |
| 21+ | 15mg | Maximum FDA-approved dose |
Common mistakes when tracking Zepbound
- Not logging which pen you used or when. Pen inventory matters because each pen is a fixed dose.
- Logging weight inconsistently (different time of day, different hydration).
- Skipping the titration history once you are stable. You will need that history if you plateau later.
- Not noting side effect severity. This is the data that informs whether to hold a dose versus titrate up.
- Forgetting to log skipped doses. They happen. Log them so the timeline stays honest.
Frequently asked questions
Should I track Zepbound or tirzepatide?
Same compound. The tracker name does not matter; what matters is logging dose and date consistently. Regimen's Zepbound and Mounjaro trackers use the same underlying tirzepatide tracking. Pick whichever matches your prescription.
What if I miss a Zepbound dose?
Take it within 4 days of the missed dose if possible. If more than 4 days have passed, skip it and resume your normal schedule. Log the miss in Regimen so you can correlate any side-effect rebound with the gap.
How long should I hold each titration step?
FDA standard is 4 weeks per step. Many providers hold longer (6-8 weeks) if side effects are tough or if you are responding well at a lower dose.
Does the pen need to stay refrigerated?
Yes, between 36 and 46°F refrigerated. Once you have started a pen, it can stay at room temperature (up to 86°F) for up to 21 days. Log the opening date.
When will I see weight loss on Zepbound?
Most users see initial loss in weeks 4-8 (during the 5mg dose). Significant loss typically by week 16. Continued loss through week 72 is common per clinical trials.
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
How Regimen compares to other Zepbound tracker apps
| App | Multi-Compound | Side Effect Tracking | Lab Integration | Apple Health | Free Tier | Price |
|---|---|---|---|---|---|---|
Regimen | Unlimited compounds (Pro) | 50+ markers | Full lab tracking with dose overlay | Apple Health + Google Health Connect | One compound free | $4.99/month Pro |
| GLP-1 only | Standard GI side effects | No | Read-only | Limited | $49.99/year | |
| GLP-1 only | Common side effects + food noise | No | Yes | Fully free | Free | |
| GLP-1 only | 18 markers + custom | No | Yes | Trial, then paid | $10/month |
Sources verified May 24, 2026: Shotsy (App Store + Google Play), Glapp (App Store; Android is a PWA), MeAgain (App Store + Google Play). Pricing reflects current published model per each app’s listing. Feature coverage based on publicly available app descriptions as of May 2026.
How we built the Zepbound tracker
Zepbound is tirzepatide branded for weight loss (the same active ingredient as Mounjaro, which is branded for type 2 diabetes). The dose system is identical: six pen strengths (2.5, 5, 7.5, 10, 12.5, 15 mg), one dose per pen, with titration typically every four weeks. The complexity isn't the math, it's catching how each step-up actually moves weight, body composition, and side-effect patterns over time.
Regimen's Zepbound tracker is built around that titration question:
- Pen-strength selector: every dose change logs the new pen strength with the date. Your history shows every step from 2.5 to 5 mg, 5 to 7.5 mg, and so on.
- Side-effect tracking across 50+ markers: nausea, vomiting, constipation, diarrhea, sulfur burps, the food-stuck feeling, fatigue, mood, sleep, appetite, energy, plus any custom marker.
- Weight trend overlay: dose changes plot on the same chart as your weight, so you can see how each step-up changed the trajectory.
- Progress photos: optional weekly photo log stored locally. Useful for noticing body composition changes that don't show up on the scale.
- Apple Health and Google Health Connect: weight, body fat percentage, resting heart rate, sleep, and blood pressure auto-sync if you have a wearable or smart scale.
- Lab tracking: HbA1c, fasting glucose, lipid panel, hematocrit. Each lab pull plots on the dose timeline so trends are visible.
- Mounjaro compatibility: if you've been switched between Zepbound and Mounjaro (or you fill whichever is in stock), the app treats them as the same compound for protocol continuity.
- Multi-compound support: most Zepbound users on Regimen also track at least one other compound (TRT, a peptide, HRT, supplements). The app handles them all together instead of forcing you into a GLP-1-only silo.
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
How do I log Zepbound by pen across the six titration steps?
Select the pen (2.5, 5, 7.5, 10, 12.5, or 15 mg) and confirm the injection. The app stores every titration step with timestamps so each new pen lines up against weight, appetite, and side effects in your timeline.
Can Regimen track both branded Zepbound and compounded tirzepatide?
Yes. Branded Zepbound logs by pen strength. Compounded tirzepatide logs by mg per dose since vial concentrations vary by pharmacy. Switching between them keeps your dose history and weight trend continuous.
Will Regimen pull in my weight and body composition automatically?
Yes. Weight, body fat percentage, BMI, lean mass, and resting heart rate sync via Apple Health or Google Health Connect. The weight trend plots directly under your Zepbound dose timeline so each titration step lines up with what your scale actually did.
What Zepbound side effects can I log?
GI symptoms (nausea, vomiting, diarrhea, constipation, sulfur burps, reflux), plus fatigue, sleep quality, mood, appetite intensity, food aversion, and the food-stuck feeling. Custom markers cover injection-site reactions or birth control backup windows after each titration step.
How does Regimen compare to Shotsy, Glapp, or MeAgain for Zepbound tracking?
See the comparison table above. Short version: those apps are GLP-1-only logs. Regimen handles Zepbound alongside any other compound, models blood levels with published PK data, and includes lab correlation on the free tier.
Can I track progress photos and body recomposition on Zepbound?
Yes. Progress photos store with timestamps and dose-step labels so you can scrub through visible changes across each pen. Body fat percentage and lean mass from a smart scale plot on the same chart as weight.
Is there a free Zepbound tracker in Regimen?
Yes. The free tier covers one compound, including Zepbound, with full dose logging, side effects, weight sync, and lab tracking. Pro ($4.99/month) unlocks multi-compound stacks and the Signals pattern engine.
Does Regimen treat Zepbound and Mounjaro the same way?
The underlying compound is identical (tirzepatide), so the math and PK curves match. The Zepbound view emphasizes weight trajectory and body composition; the Mounjaro view surfaces HbA1c and glucose more prominently. Your data flows the same way either side.
Stop guessing. Start optimizing.
Your protocol deserves better than a notes app and a calendar.