Built for beginners
Every screen explains the why, not just the what. Plain English at every step, with extra notes the first time you see something new. No assumed knowledge.
Plain English · zero jargon
Your first peptide doesn’t haveto be scary.
Not sure how to mix your first vial? Can’t figure out the dosing math? Nervous about the needle? PRTCL walks you through mixing, dosing, and injecting - step by step, with pictures, so you get it right the first time.
A note from the founder
The app I wished I had.
The first time I tried to mix a peptide, I watched four YouTube videos, read three Reddit threads, and still wasn’t sure I’d done it right.
The dosing math made no sense. I was scared I’d waste a $100 vial, or worse, hurt myself.
So I built PRTCL: the app I wished someone had handed me before I opened that first vial. Clear. Quiet. Specific. The opposite of a forum thread.
L
Lawrence
Founder · PRTCL
Vial #001 ·
opened 2026
Built from licensed practitioner protocols
PRTCL's protocols, dosing, and content come from board-certified physicians with active practices. Each entry cites its source. Not Reddit threads.
- Board-Certified Sources
- Cited References
- Updated Regularly
See how it works
From sealed vial of powder to first dose in 10 minutes.
How much water goes in the vial? How do you get the right amount into the syringe? What if it looks cloudy? PRTCL answers every question before you have to ask it.
- Pictures at every step - so you always know what it should look like
- The app does the math - just enter your vial and dose
- Built from real doctor protocols, not Reddit threads
- Checkpoints along the way so you never skip a step
The honest comparisonWhat you've been doing
What you've been doing
is not working.
There are 20+ peptide tracker apps on the App Store. Most are great at what they do - but they were built for people who already know what they're doing. Here's how the real landscape stacks up against PRTCL.
PRTCL.
Built for your first peptide
DoseIQ
Optimization tracker for biohackers
Shotsy
GLP-1 only (Ozempic, Mounjaro, etc.)
PeptIQ
Wearable + bloodwork data correlation
Walks first-timers from sealed vial to first injection
Picture-led step-by-step during the actual injection
Protocols cite their physician sources
Made for first-timers AND experienced users
Reconstitution calculator
Advanced protocols with dose ramps (titration)
Covers GLP-1s and full-spectrum peptides
Features
Everything you need. Nothing you don’t.
No social feed. No supplement store. No "as seen on." Just the tools you need for your entire peptide journey, no matter where you’re starting.
Advanced Protocols
From a simple weekly cycle to multi-peptide stacks with phases and titration. Build your own or run one a practitioner shared.
Phases · titration · stacks
Peptide Library
Plain-English explanations of mechanism, dose, and what to expect - backed by protocols from leading board-certified physicians. No jargon, no fluff.
Physician-vetted protocols
Injection Tracker
Log each dose. PRTCL rotates your sites, reminds you on schedule, and notes side effects against the cycle.
Daily · weekly · cycle view
Dose Calculator
Tell it your vial. PRTCL gives you the exact units, every time. No mental math, no second-guessing.
Free · all peptides
Doctor Review
Allow your doctor or provider to create and review your protocols so you never worry about taking the wrong dose.
Pro · licensed only
FAQ
Questions you should ask.
Other peptide apps are built for people who already know what they're doing. PRTCL is built for the moment you open your first vial and think 'now what?' We walk you through every step with pictures and plain English. No guesswork, no jargon.
Stay in the loop
Short notes about your first peptide.
Drop your email. A few short letters about how to get past the part where you're staring at your first vial - plus the occasional new peptide we add. No marketing tone.
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