Track Your HCG Protocol
Log every IU dose, calculate syringe draws from your vial concentration, and coordinate HCG with your TRT protocol on one timeline.
Human Chorionic Gonadotropin — TRT Support
Regimen is the HCG tracker app that eliminates the reconstitution math headache. Enter your vial IU count, BAC water volume, and target dose — Regimen calculates the exact syringe draw every time. Track your HCG alongside testosterone and other ancillaries on one timeline, monitor vial expiration dates, and correlate your protocol with health metrics from Apple Health or Google Health Connect. Whether you're using HCG for TRT support, fertility preservation, or hormonal optimization, Regimen tracks it all. Free — every feature unlocked for your first compound. No paywall, no trial, no credit card. 4.9 stars on iOS and Android.
HCG math is a headache. Every single time.
It's the most error-prone compound in any protocol:
Calculating IU from your vial concentration and bacteriostatic water volume — and doubting yourself every time
Tracking how many doses are left in a reconstituted vial that expires in 30 days
Coordinating HCG timing with your testosterone injections when they're on different schedules
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 HCG matters
IU calculator built in
Enter your vial IU count, water volume, and target dose. Regimen calculates the exact syringe draw — no more mental math or triple-checking.
Vial expiration tracking
Reconstituted HCG degrades. Regimen tracks when you mixed it, how many doses remain, and alerts you before it expires.
Protocol coordination
Running HCG alongside TRT? Regimen schedules both independently and shows your full protocol on one timeline.
Related Tools & Guides
What Regimen Tracks for HCG
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.