Injection Site Tracker
See where every injection has actually gone — not where you think it went.
Published by Pep AI · Injection tracker · Updated August 2026
Rotation fails for an unglamorous reason: nobody remembers where the last injection went, and definitely not the one before that. What people do instead is drift toward the comfortable, reachable spots — which is not rotation but a slow narrowing onto a few favourites.
The drift is invisible without a record, because each individual injection genuinely feels like it was somewhere new. Pep AI records the site with every dose and shows the accumulated pattern, which is the only way to see it.
It also suggests the next site from your actual history rather than a fixed cycle, so the spacing responds to what you have really been doing.
The pattern you can't see from memory
Each injection feels new. The aggregate tells a different story.
Next-site suggestion
Suggested from your real history rather than a fixed cycle, so spacing responds to what you've actually been doing.
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
How far apart should injection sites be?+
At least an inch between successive injections is the common guidance, and further is better. What matters is that any given spot gets a real interval to recover, so the needed spread depends on how often you inject.
How do I know if I have lipohypertrophy?+
Feel rather than look. Run your fingertips flat over the areas you inject and compare against the opposite side — affected tissue feels firmer, thicker or more rubbery, is often slightly raised, and is usually painless.
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.
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