Peplo
Run your peptides on evidence, not guesswork.
Know what a vial actually costs you per dose, get the reconstitution math right — blends and pens, not just powder — and see what’s changed since you started. Every protocol cited to the research.
Three vials in, most people can’t say what a dose costs them or whether it’s working. Peplo keeps both numbers in front of you.
Stacks
Run your whole stack as one regimen
Most people aren’t running one compound. A fat-loss stack might pair retatrutide with tesamorelin; a hormone protocol might add testosterone on its own cadence. Peplo keeps each compound as its own protocol — its own dose, route, frequency, and cycle — and tracks them together as a single stack.
Today shows the whole stack at a glance: what to take, when, and what’s already done. Add a compound from your fridge or the catalog and your reminders follow automatically.
Start with your goal
Peplo organizes everything around what you’re actually trying to do — not a wall of compounds. Pick a goal and it shapes your stack, your reminders, and the results worth watching.
Weight & metabolic
GLP-1 titration with guided dose steps, protein and GI-symptom tracking, and body-composition trends.
Recovery
Run a recovery stack on a clear cycle, log how you feel, and watch the trend instead of guessing.
Performance & longevity
For multi-compound stacks that need evidence, not hype — correlate doses with the markers you care about.
Your own goal
Bring any protocol. Peplo keeps the math, the inventory, and the tracking honest, whatever you're running.
Goal → track → results
Three steps, one calm loop. Each one is built to be done in seconds and to feed the next.
Get the dose right
Scan a vial or pick your peptide and Peplo does the reconstitution math for you — every syringe size, every time. Each protocol cites peer-reviewed literature, not influencers.
Track it the easy way
One-tap dose logging, an inventory that knows sealed vs. reconstituted and when a vial really expires, and reminders that follow your cycle and pause on off-weeks.
Link doses to results
Upload your labs or sync your wearables, and Peplo plots your markers against your stack — so you can finally see whether what you're doing is moving anything.
Cost
Know what a vial actually costs you before you buy three.
Enter what you paid for a vial and Peplo carries cost per dose through every screen that mentions it — so the number is in front of you when you’re deciding whether to reorder, not in a spreadsheet you stopped updating.
Work out your cost per dose — free
Insights
It reports what changed — including when nothing did.
Peplo plots your labs and wearables against the day your stack began and reports what it can see — including a trend going nowhere, which is the reading most tools quietly leave out. It reports observations, not conclusions, and says when there isn’t enough data yet.
You can ask questions about your own stack and get an answer with its sources attached. Plenty of apps have added a chat box; the difference here is what it is allowed to say and what it cites.
Why Peplo
More than a log
You can already write your doses in a notes app or a spreadsheet. Peplo is built for the parts that a blank grid leaves to you — the reconstitution math, the cited guidance, and seeing your whole stack against what actually changed.
| Capability | Peplo | A basic tracker or spreadsheet |
|---|---|---|
| Cost per dose and per monthEnter what you paid for a vial and Peplo carries cost per dose through every screen that mentions it — so the number is there when you're deciding whether to reorder, not in a spreadsheet you stopped updating. | Built in | On your own |
| Reconstitution mathEnter the vial and your target dose; Peplo computes the draw for every syringe size, so you're not doing arithmetic before an injection. | Built in | On your own |
| Cited guidanceProtocols and answers reference peer-reviewed literature, with sources you can open — not influencer screenshots or forum lore. | Built in | On your own |
| Protocol Q&AAsk questions about your own stack and get a sourced, disclaimed answer that points you back to a qualified provider. | Built in | On your own |
| Inventory that knows expiryTracks sealed vs. reconstituted vials and when each one really expires, so a vial doesn't quietly go past its beyond-use date. | Built in | On your own |
| Reminders that follow your cycleDoses, off-weeks, and titration steps drive your reminders automatically, instead of you re-checking a spreadsheet each morning. | Built in | On your own |
| Results against your stackYour labs and wearables are plotted against the day you started, so you can see what's changed since — co-occurrence, not a verdict. | Built in | On your own |
| Your whole stack in one placeSeveral compounds, each on its own protocol, tracked together as one regimen — not scattered across notes and tabs. | Built in | On your own |
“Built in” means Peplo does the work for you. “On your own” means a plain tracker can hold the note, but the math, the sourcing, and the analysis are left to you.
Try the free reconstitution calculatorBuilt on trust, not hype
Safety first. Educational and computational — never medical advice. Peplo cites its sources, says “consider” not “do,” and points you back to a qualified provider.
Private by default. Your health data is yours. It lives on your device first; anything shared with the community is anonymous and aggregate-only.
Community insights — coming. Aggregated, consented dosing patterns are on the roadmap, and will ship when there are enough people for the numbers to mean anything. We would rather say “not yet” than show you an average of six strangers.
Made by people who use it. An independent project built by people who run their own stacks — not a clinic, a pharmacy, or a marketplace. Peplo never sells or sources peptides, and has nothing to gain from what you choose to run.
We’re a small, independent team, not a medical provider. Peplo is here to keep your math, your inventory, and your tracking honest — the decisions about your protocol stay between you and a qualified clinician.