PepStackr is the all-in-one peptide tracker with reconstitution calculators, injection scheduling, vial inventory, and real-time blood concentration modeling.
From reconstitution math to blood level projections, PepStackr handles the complexity so you can focus on results.
Real pharmacokinetic curves showing estimated plasma levels across all your peptides. See what's in your system right now and project future levels from scheduled doses.
Enter your vial size and BAC water volume. PepStackr calculates the exact syringe units for your target dose, with suggestions for common insulin syringe marks.
Daily, custom days, cycling, titration ramps — configure any protocol. Get push notification reminders and export to Google Calendar or ICS.
Track sealed and reconstituted vials. See remaining doses at a glance, get low-stock alerts, and know exactly when to reorder.
Combine multiple peptides into named stacks with individual dosing. Start with pre-built templates or build your own. Pause and resume entire protocols.
Log weight, energy, mood, sleep quality, side effects, and exercise daily. Upload progress photos and correlate how you feel with what you're taking.
No app store download needed. PepStackr is a progressive web app that works in your browser and installs to your home screen.
Sign up free. Set your goals, add your peptides, and enter your vial inventory.
Pick a pre-built stack template or create your own. Set frequency, dose, titration, and cycling.
Log doses, check in daily, and watch your blood concentration curves and health metrics evolve.
Whether you're running a simple recovery stack or a complex multi-peptide protocol, PepStackr adapts to your needs.
Track BPC-157, TB-500, and other healing peptides. Monitor tissue repair progress with daily check-ins and photo timelines.
Manage GLP-1 agonists like tirzepatide with titration schedules. Track weight trends and body composition changes over time.
Coordinate CJC-1295, Ipamorelin, and MK-677 timing. Use cycling schedules to prevent desensitization and maximize GH pulses.
Run complex protocols with 3+ peptides across different schedules. PepStackr keeps every dose, vial, and timing organized in one place.
Yes. PepStackr is free to use with no credit card required. All core features including dose tracking, scheduling, reconstitution calculator, and health check-ins are included.
No. PepStackr is a progressive web app (PWA). It runs in your browser and can be installed to your home screen on any phone or tablet for an app-like experience with push notifications.
Yes. Your health data is encrypted in transit and at rest. You can export or delete all your data at any time. We never sell your personal information.
PepStackr has a library of 100+ peptides with half-life data, including BPC-157, TB-500, CJC-1295, Ipamorelin, GHK-Cu, tirzepatide, semaglutide, and many more.
PepStackr uses a first-order pharmacokinetic decay model based on each peptide's half-life and your logged doses to estimate plasma concentration over time. It supports multi-peptide superposition.
Yes. You can publish your peptide stacks to the community for others to discover and import. You can also browse and adopt stacks shared by other users.
Free forever. No credit card. No app store download. Just better peptide management.
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