How to Track Peptide Doses and Vial Inventory

If you take more than one peptide, or you refill from vials instead of pens, the hard part is rarely the shot itself. It's the record. Which vial is open? How many doses have you already logged against it? When should you reorder so you don't come up short?

This guide covers a simple dose log, a practical vial inventory, and how to keep both in one place. It is about recordkeeping only. It will not tell you how to mix a vial or how much to draw.

Quick note: this article is about recordkeeping only. It is not medical advice. Your prescriber and the instructions that come with your product decide your dose, schedule, mixing steps and injection sites. Do not calculate, convert or change a dose on your own. If you have questions, talk to your clinician or pharmacist.

Why peptide logs and inventory go together

A dose log answers "what did I take, and when?" An inventory answers "what do I still have?" You need both, because one without the other leaves a gap.

A combined record helps you:

What to log for every peptide dose

Keep each entry short. The core fields:

  1. Date and time. The moment you took it, not the moment you meant to.
  2. Name, exactly as it appears on the vial or box.
  3. Dose as written on your label or as your prescriber wrote it. Copy the amount and the units. Don't convert units, and don't work out a new amount from a calculator unless your clinician has told you to use one and has reviewed the result.
  4. Which vial or container you used, if you have more than one on hand. A simple label like "vial A, opened Oct 20" is enough.
  5. Injection site, if it's an injection. Area and side, for example "abdomen, left."
  6. Notes, if needed. A late dose, a skipped dose, or anything you want to mention at your next visit.

If you miss a dose, log what actually happened, then ask your prescriber or pharmacist what to do next. Don't double up on your own.

What to track in a vial inventory

You don't need a warehouse system. You need a list you will update.

For each item, record:

What not to put in the inventory:

Paper, a spreadsheet, or an inventory app

A notebook in the same place as your vials

Pros: free, visible, easy to start. Cons: no reminders, easy to forget to subtract a dose, and hard to keep up if you travel or use more than one item.

A spreadsheet

Pros: you can sort, add columns and keep a running total. Cons: you have to open it every time, there's no shot-day reminder, and version copies get messy across devices.

A tracking app with inventory

Pros: the dose log and the supply count live together, low-stock alerts can fire before you run out, and you can keep peptides next to other medications or supplements. Cons: usually a subscription, and you should read the privacy policy before you store this kind of information in an app.

How to track doses and vials in iQStax

iQStax is a private log for peptides, GLP-1s, medications, TRT and supplements. It records what you enter. It does not diagnose, prescribe or tell you what dose to take. It also does not calculate reconstitution volumes or syringe units.

Here's how this looks in iQStax:

iQStax comes with a 14-day free trial, then it's $4.99 a month or $29.99 a year.

Download iQStax on the App Store or Google Play at myiqstax.com and start your free trial.

Habits that keep the inventory honest

FAQ

Can iQStax tell me how much to draw from a peptide vial?

No. iQStax is a private log, not a calculator and not a medical tool. It records the dose you enter. It does not calculate reconstitution volumes, syringe units or remaining doses for you. Follow your prescriber's instructions.

What should I do if I'm not sure how much is left in an open vial?

Don't guess and don't start a new math worksheet from a blog post. Check the label, look at your recent log, and ask your pharmacist or prescriber how they want you to track it.

Can I track more than one peptide, plus a GLP-1 or a supplement?

Yes. iQStax is built to keep those items in one inventory and one calendar, each with its own log and reminders.

What if I miss a peptide dose?

Log what actually happened, with the real date. Then check the instructions you were given, or call your prescriber or pharmacist. Don't double up on your own.

Is iQStax free?

iQStax has a 14-day free trial. After that it's $4.99 a month or $29.99 a year.

Keep the log and the inventory in one place

A peptide record doesn't have to be complicated. Date, name, dose from the label, which vial you used, and a count of what's still on hand. Update both every time, and you'll spend less time guessing before the next shot.

Try iQStax free for 14 days. Download it on iPhone or Android at myiqstax.com.

iQStax is a recordkeeping tool. It does not provide medical advice, diagnosis or treatment, and it does not calculate doses. Talk to your clinician about your medication, dose, mixing instructions and injection sites.

Download iQStax

Start your 14-day free trial. Then $4.99/mo or $29.99/yr (U.S. prices). Free to download on iPhone and Android.

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By the iQStax team · November 10, 2026. Recordkeeping guidance, not medical advice. Features and screens may vary by platform and version.