The Peptide Masterclass
A short course inside the app. It takes you from "what is a peptide?" to running your own plan with confidence. Real research, every claim cited, plain words.
Short lessons · plain words
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.
New to peptides? Start with the free first-timer guide.
Your protocol, simplified.
Start with what you have.
Down the wall, nice and slow.
No guesswork. No shaking.
Research every compound and stack.
Never lose track of your doses.
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.
More people try peptides every day. Most start right where I did: excited, a little scared, and lost in bad information.
These things can do real good for your body, but only if you use them right. No one should have to guess. That is why PRTCL exists: to close that gap, and to be the first app that truly teaches a beginner.
L
Lawrence
Founder · PRTCL
Vial #001 ·
opened 2026
Every claim cited to a published source
Every health statement in PRTCL links to where it came from: FDA prescribing information, peer-reviewed research, or published clinical guidance. Anything we could not source, we do not say.
- FDA Labeling
- Peer-Reviewed Research
- Every Claim Cited
See how it worksFrom sealed vial of powder
From sealed vial of powder
to your first shot in 10 minutes.
Mix
- Pictures at every step, so you know what it should look like
- Every claim links to an FDA label or a published study
- Checkpoints so you never skip a step
Dose
- See the fill line on the syringe before you draw
- Works with any vial size and any peptide
- Shows units on a standard U-100 insulin syringe
Track
- Rotates between belly, thigh, and arm spots
- Reminders so you never miss a shot
- Send your log to your doctor in one tap
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
Every health claim links to a published source
Made for first-timers AND experienced users
Reconstitution calculator
Advanced plans that raise your dose step by step
Covers GLP-1s and full-spectrum peptides
Features
Made to teach you, not just track you.
Most peptide apps are trackers. PRTCL is the one that teaches you as you go. No social feed, no supplement store, and we never sell peptides. Just tools and straight answers for your whole journey.
Mix your first vial without fear
How much bac water goes in? PRTCL walks you through mixing your first vial, one photo at a time. No shaking, no guessing, no wasted vial.
Photos at every step
See your dose on the syringe
Other apps hand you a number. PRTCL shows the fill line on a picture of your syringe, so you draw it right the first time.
Free · any peptide
No dumb questions here
Reddit tells first-timers they should already know. PRTCL never does. Every screen is written for your first time, with zero judgment.
Plain words · zero judgment
Company for your first shot
When it's time to pick up the needle, PRTCL is right there with you. It talks you through the shot, step by step, so you never feel alone.
You're not alone
Every answer shows its source
Every health statement in PRTCL links to where it came from: an FDA label or a published study. You can open the source and read it yourself. No mystery advice.
Cited sources
Your numbers, your call
PRTCL does your math and shows its work. It never tells you what dose to take. That part stays between you and your doctor.
The math, not a prescription
FAQ
Questions you should ask.
Other peptide apps expect you to know what you are doing already. PRTCL starts at your first vial. It walks you through mixing, measuring, and your first shot, with pictures and plain words. And it never makes you feel dumb for asking.
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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