Reconstitution math required a calculator and a prayer. That was my wife's assessment of our first week with GLP-1 peptides, and she wasn't wrong. Dosing schedules lived in forums. Compound information that should have taken five minutes to find took an hour of reading research papers written for people who already knew what they were reading. The advice we found ranged from precise and credible to completely made up.
We started anyway. And we ran into every problem that anyone who starts a peptide protocol eventually hits. We lost track of vial reconstitution dates. We caught ourselves reusing the same two injection sites for weeks. We couldn't clearly answer basic questions about how the compounds we were running actually worked in the body, or how they interacted with each other.
The information existed. The tools to connect it to a real daily practice did not. That gap is what became Protocol.
I'm David Vigil, founder of Protocol Peptide Tracker. I didn't come from pharmaceutical research or a tech startup. I came from exactly the same starting point most Protocol users do: someone curious about health optimization who found that the available tools didn't match what people actually need to do this well. The app I built is the one I needed when we started.
565
New users in the last 28 days
5.0 ★
App Store rating
81
Compounds in the research library
What Protocol does
The core features address the specific problems we hit in that first month. A reconstitution calculator built into the logging flow. A compound library covering 81 peptides with dosing protocols, PK curves, and research profiles. An AI research assistant that scores stack combinations across six dimensions: synergy, redundancy, side effect risk, evidence quality, cost, and complexity. A 3D injection site map that tracks rotation across eight body zones. A daily check-in that tracks weight and wellbeing alongside the dose log.
Protocol is also the only app that connects peptide tracking with supplement tracking and habit tracking inside the same protocol view. If you are running BPC-157 and TB-500 for a shoulder injury, your physical therapy exercises and stretching routine can live in the same protocol alongside the compounds. Health optimization doesn't happen in silos. Protocol is built around that reality.
Built for clinical context too
Protocol lets you export your complete peptide and supplement history as a PDF or CSV and email it directly to a healthcare provider. As peptides move toward the mainstream (the FDA PCAC voted to recommend BPC-157, TB-500, and four other compounds for compounding access in July 2026), the bridge between self-directed health optimization and clinical oversight matters more than it did two years ago. Protocol is designed to support both.
The research is free. Always.
The compound library, the peptide calculators, the PK curve tools, the regulatory status registry: all of it is publicly available at protocolapp.health with no subscription required. Knowledge about these compounds should not be behind a paywall. Protocol the app is for the people who want to take that knowledge and put it into a structured daily practice. The research is for everyone.
We built Protocol because we needed it. It turned out a lot of other people did too.
Free on iOS and Android.
No account. No cloud sync. Every log, vial, and injection stays on your device.
