Free peptide tracker spreadsheet: an injection log template you can use today
Short answer: Yes, here is a free peptide tracker spreadsheet: a CSV injection log template that opens in Excel, Google Sheets or Numbers, with columns for date, time, compound, amount, site, vial or pen, side effects and notes. It works for peptides, TRT and GLP-1s such as Zepbound or Mounjaro. A spreadsheet is a good record, but it cannot remind you, suggest the next site, estimate levels or warn you before a vial runs out. That is what PepLevel, our iPhone app, is for.
Download the template
Download the free injection log template (CSV). It has a header row and two clearly fictional example rows to show the format. Delete those before you start. No sign-up, no email address.
What each column is for
| Column | What to put in it |
|---|---|
| Date, Time | When you actually injected, not when it was due. Use one date format throughout (2026-01-05 sorts properly). |
| Compound | The same spelling every time, so filters and counts work. |
| Amount, Unit | The amount you took, copied from your prescription or plan, and its unit (mg, mcg, mL, units or clicks). Keep units consistent per compound. |
| Taken or skipped | Log skipped doses too. A blank row looks the same as a forgotten one. |
| Site | A short fixed list, such as "Abdomen left", "Thigh right". A dropdown stops typos. |
| Vial/pen | Which container it came from, with the date you opened or mixed it. |
| Side effects | What you felt, with a 1 to 5 severity, so patterns show up later. |
| Notes | Anything else: late dose, travel, a new batch. |
Making it work
- One row per dose. Two compounds on the same day means two rows.
- Freeze the header row and turn on filters, so you can show one compound at a time.
- Add a dropdown for Site using data validation (Excel and Google Sheets both have it).
- Days since last dose: in a spare cell, =TODAY()-MAX(A:A) shows how long ago the latest row was. Filter by compound first if you track several.
- Keep it on your phone if you can. A spreadsheet on a laptop at home does not help when you are wondering at 8pm if you already injected.
Using it as a Zepbound tracker spreadsheet
The same template works for a weekly GLP-1. Two lines from the Zepbound (tirzepatide) Medication Guide show why the Site and Date columns matter: it says to change your injection site with each weekly injection, and that a missed dose can be taken within 4 days (96 hours), otherwise skip it and carry on from your usual day. A spreadsheet can show when your last dose was, but it will not work out those windows for you. Check with your prescriber or pharmacist, or call NHS 111 in the UK, if you are unsure what to do after a missed dose.
What a spreadsheet cannot do
- Remind you. It only knows what you typed after the fact.
- Handle non-weekly schedules. Every 3 days, on/off cycles and twice-daily doses need you to count by hand.
- Suggest the next site. You scroll back and read.
- Estimate levels. Building a half-life curve in a spreadsheet is possible, but fiddly and easy to get wrong.
- Warn about supply. It will not tell you a vial runs out next Thursday, or that a pen is near its expiry.
If you only log one thing once a week, the template may be all you need. Once there are reminders to set, sites to rotate and vials to watch, an app does the counting.
How PepLevel handles it
PepLevel keeps the same columns as the template, then does the work a spreadsheet cannot. Log Dose is prefilled with the planned amount, the time and a suggested injection site, linked to the vial or pen it came from. Backdate, record a skip, add notes, and log side effects with a 1 to 5 severity against the dose they followed.
Reminders follow the schedule you enter, including every N days, every N hours, set weekdays and on/off cycles, and you can log from the notification. The site rotation grid shows the suggested next site with recent and older ones. The Meds tab shows each pen or vial with what is left, forecasts when it runs out and sends a reorder reminder. For any compound with a half-life, a level curve gives an illustrative estimate of what is in your system.
There is no account, and your log stays on your iPhone. The free version tracks one compound and stays free. Pro (£5.99 a month, £24.99 a year with a 7-day free trial, or £69.99 lifetime) adds unlimited compounds and CSV export, so your data can always go back to a spreadsheet. PepLevel is coming soon to the App Store.
Common questions
Is there a free peptide tracker spreadsheet?
Yes. The PepLevel injection log template is a free CSV with columns for date, time, compound, amount, site, vial or pen, side effects and notes. It opens in Excel, Google Sheets and Numbers.
Can I use it as a Zepbound tracker spreadsheet?
Yes. It works for weekly GLP-1 injections as well as peptides. Use the Site column to change site each week, as the Zepbound Medication Guide says.
Should I use a spreadsheet or an app?
A spreadsheet is fine as a record. An app adds reminders, site suggestions, supply warnings and level estimates. PepLevel's free version covers one compound, and Pro can export your data back to CSV.
Outgrown the spreadsheet?
PepLevel reminds, rotates and counts for you. Coming soon to the App Store. Coming soon to the App Store.
Get PepLevelMedical disclaimer: this guide is general information, not medical advice. Medication guide wording is summarised from the US Zepbound Medication Guide. Follow your own prescriber's instructions. Always follow your prescriber's instructions, and ask them, your pharmacist or NHS 111 if you are unsure about anything. PepLevel is a logging and reminder tool only.