The HRT Tracker Built for Multi-Compound Protocols
Log estradiol, progesterone, and low-dose testosterone on their own schedules. See which dose change actually moved which symptom.
Estradiol · Progesterone · Low-Dose Testosterone · Perimenopause & Menopause
Regimen is the HRT tracker built for women managing real protocols. Estradiol injections, patches, or gels on one schedule. Progesterone on another. Low-dose testosterone if you're on it. Each compound has its own log, its own reminders, and its own dose history. Track sleep, mood, hot flashes, energy, and libido alongside your protocol so you can finally see which adjustment caused which effect. Export the whole thing as a PDF before your next appointment. Free for your first compound. No paywall, no trial, no credit card. Works for perimenopause, post-menopause, surgical menopause, and gender-affirming HRT.
Managing HRT shouldn't require a spreadsheet
Multi-compound protocols are genuinely hard to track in a notes app. Here's why.
Estradiol on one schedule, progesterone on another, maybe low-dose testosterone in the mix. A notes app stops working fast.
You changed your dose six weeks ago and your sleep got better. Was it the estradiol? The progesterone timing? You can't actually tell.
Labs only mean something if you know how many hours post-injection or post-application the blood was drawn. Most people are guessing.
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 women on HRT use Regimen
Multi-compound on different schedules
Estradiol every 5 to 7 days, progesterone nightly, low-dose testosterone weekly. Each compound logs and reminds independently, all in one place.
Symptoms tied to dose changes
Track sleep, mood, hot flashes, energy, and libido alongside your protocol so you can see which adjustment actually moved which symptom.
Bring real data to your prescriber
Export your full log as a PDF. Show up to your appointment with timing, doses, and symptom trends instead of trying to remember the last three months.
What Regimen Tracks for HRT
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
Can I track estradiol and progesterone in the same app?
Yes. Each compound is added separately with its own schedule, dose log, and reminders. Estradiol injections, oral progesterone at night, and low-dose testosterone if you're on it all live in one place. The symptom view lets you see whether changes line up with adjustments to any individual compound.
Does it work for patches and gels, or only injections?
Both. You can log a patch change date the same way you log an injection, note the dose and placement, and track symptoms alongside it. The PK curve modeling is most useful for injectables, but the dose log, reminders, and symptom correlation features work the same way for transdermal estradiol, oral progesterone, or topical testosterone.
Is this for perimenopause as well as post-menopause?
Yes. Perimenopause is where multi-compound tracking matters most because hormones are still shifting on their own and your protocol may be adjusting more often. Cycle notes are supported for users still cycling, and the symptom log captures the markers that tend to move first: sleep, mood, hot flashes, brain fog.
Does it work for gender-affirming HRT?
Yes. The app tracks any HRT protocol regardless of context, including injectable estradiol, oral or sublingual estradiol, anti-androgens like spironolactone or bicalutamide, progesterone, and testosterone. Doses, schedules, and symptom markers are all configurable per compound.
Can I export my protocol to bring to my doctor?
Yes. The PDF export shows your full compound list, dose history, injection or application dates, and symptom log over the period you choose. Most users export the last 90 days before their appointment so the prescriber has timing context for any lab values.
Is my hormone data private?
Yes. Your protocol and symptom data stay on your device by default. Nothing is shared, sold, or used for ads. You control what gets exported and to whom.
Stop guessing. Start optimizing.
Your protocol deserves better than a notes app and a calendar.