Peptide Vial Tracker
Every vial's concentration, age and remaining doses — kept where you can find them.
Published by Pep AI · Peptide tracker · Updated August 2026
Two facts about a vial are unrecoverable once you have thrown the box away: how much water you added, and when. The first determines your concentration and therefore what every unit figure you have logged actually means. The second determines whether the vial is still good.
Almost everyone intends to write both on the label, and almost everyone eventually doesn't. Pep AI records them as part of setting the vial up, so they cannot be forgotten, and the doses drawn from that vial stay attached to them.
It also counts down. As you log doses, remaining volume falls, so you can see whether the vial will empty before its usable window closes — which is the question that actually determines whether you are wasting material.
The two facts you can't recover later
Water volume and reconstitution date. Both recorded at setup, neither forgettable.
Doses remaining
Counts down as you log, so you know whether the vial or its usable window runs out first.
Doses & schedules
Daily, every-other-day, or fully custom. Get a reminder when it's time, log it in one tap, and your history builds itself.
Vials & reconstitution
Enter your vial and bacteriostatic water and Pep AI converts your dose into exact syringe units — no mixing math, no guessing.
Injection sites
Automatic site rotation so you always know where the last shot went and where the next one should go.
Estimated levels
See your estimated compound level rise and fall between doses, modelled from your schedule and published half-lives.
Pep Bot
An AI assistant with a research-literature retrieval pipeline. Ask what a compound is or how a half-life works — it won't tell you what to take.
Frequently asked questions
Why does the water volume matter so much?+
Because it sets your concentration, and concentration is what converts a syringe reading into an actual amount. Without it, a record showing '12 units' is uninterpretable — it could be almost any amount depending on how that vial was mixed.
How long does a reconstituted vial last?+
It depends on the compound, how often the vial is entered and how consistent its temperature has been. Approved products carry a validated in-use period; for research-supplied compounds no such testing exists. Tracking the reconstitution date is what lets you apply whichever figure you are working to.
Does Pep AI give medical advice?+
No. Pep AI is a tracking and organisation tool, not a medical device. It does not recommend compounds, doses or schedules, and Pep Bot declines dosing questions. What to take stays between you and a qualified clinician.
Start tracking smarter today.
Download Pep AI free on iOS and Android.