Retatrutide
- Studied range
- 1–12 mg
- How often
- Weekly
- Half-life
- ~6 days
- Evidence
- ●●●
Established
A research range, not a dose for you.
Retatrutide tracking
Track retatrutide, step by step.
The short answer
How do you track retatrutide?
Track retatrutide as a weekly shot with steps: log each shot on its day, keep the dose step you're on and when you plan the next, count down the vial you mixed, rotate the site, and put side effects and your weight next to the doses. Retatrutide isn't approved yet, so there's no label to follow: the steps are the ones you set, and its phase 2 trial stepped up every four weeks. PepVault, our iPhone app, tracks it next to anything else you run, with bloodwork and an AI coach that reads your log. The math for mixing the vial is free on this site, in the Reconstitution Lab.
Updated October 17, 2026. PepVault is our app.
What to track, and why.
- 01
One shot a week, on its day.
Retatrutide is taken once a week. Log each shot with the day and time, and a reminder on that day keeps the week on track.
- 02
Your steps, written down.
With no label to follow, keep your own record: the dose you're on, the date you started it, and when the next step is due. The trial escalations (a 2 or 4 mg start, stepping up every four weeks to 4, 8 or 12 mg) are on the library page as a reference, not a plan for you.
Retatrutide in the library - 03
The vial you mixed, and what's left.
Retatrutide vials hold a powder that's mixed with bacteriostatic water. Note the date you mixed it and count down the doses it holds, so the next vial is ready before this one runs out.
Work out the units in the Reconstitution Lab - 04
Rotate the site.
Log where each shot went, and the next one is easy to pick. The Injection Guide shows the usual spots for a shot under the skin, in 3D.
See the spots in the Injection Guide - 05
Side effects and the trend.
In the trials, the most common side effects were nausea and other stomach effects, mostly while the dose stepped up, and a 2 mg start partly eased them in phase 2. Logged next to the doses, they show which step brought what, and your weight trend shows the direction under the day-to-day noise.
PepVault for iPhone
Retatrutide, and the rest of your stack.
- Each weekly shot with its dose and site, and a reminder on the day
- The steps you set, with the next one in view
- Your vial, with the doses it has left and when it runs out
- Your weight as a trend, side effects and bloodwork next to the doses
- PepTalk, an AI coach that reads all of it before it answers
PepVault Pro is $44.99 a year or $9.99 a month, with 7 days free on the yearly plan for new subscribers. It records the schedule you set; it doesn't recommend doses.
Other apps that name retatrutide.
Apps whose App Store listing, release notes or website names retatrutide, checked October 17, 2026.
- Shotsy GLP-1 TrackerGLP-1 focused
Core features free; premium $9.99–$19.99/mo or $39.99–$59.99/yr listed
Names retatrutide in its App Store listing.
- Peptide Tracker Log & Reminder
Free; optional Founding Member membership
Names retatrutide in its App Store listing.
- Regimen: Peptide Tracker
Free for one compound; Premium listed at $49.99/yr and $7.99
Has a retatrutide tracker page on its website.
- PeptIQ: Peptide Tracker
Subscription: $9.99/wk, $19.99–$24.99/mo or $49.99–$129.99/yr listed
Names retatrutide on its website.
- Dosely Peptide & GLP-1 Tracker
Subscription: $7.99–$9.99/mo or $19.99–$39.99/yr listed
Names retatrutide in its release notes.
- PepTracker: Dose Log
Free plan; Premium $4.99/mo or $47.99/yr
Names retatrutide in its App Store listing.
Questions people ask.
What's the best app to track retatrutide?
One that handles a weekly shot with steps you set, a vial you mixed, and side effects next to the doses. Shotsy, Peptide Tracker Log & Reminder, PepTracker and Dosely name retatrutide in their App Store listings or release notes, and Regimen and PeptIQ on their websites; Shotsy's core features are free and Peptide Tracker is free. PepVault, our app, tracks retatrutide next to peptides and other GLP-1s, with bloodwork and an AI coach that reads your log: $44.99 a year or $9.99 a month, with 7 days free on the yearly plan for new subscribers.
Is retatrutide approved?
Not yet. Retatrutide is in phase 3 trials, and the dose steps in its trials are trial escalations, not an approved regimen. The library page has the trial results with their sources.
How do I work out the units to draw for retatrutide?
Use the free Reconstitution Lab on this site: enter the mg in the vial, the water you add and your dose, and it shows the units on a U-100 syringe. The Dose Guide shows retatrutide's studied range (1–12 mg, weekly) as units for your vial.
Can I track retatrutide with BPC-157 or other peptides?
Yes. In PepVault each compound keeps its own schedule, reminders, vial and injection sites, so a weekly retatrutide shot sits next to a daily peptide in one log.