Red Light Therapy Tracker: What to Write Down After Each Session
Published October 2026. Updated October 2026.
Quick answer
Write down five things after each session: the date, the device and distance, the minutes, the calculated J/cm² and one line about the setup. That is enough to repeat a session exactly and to check your arithmetic later. Keep feelings, claims and medical details out of the tracker. Paper works as well as an app, as long as you actually fill it in.
The best tracker is the one you fill in
People often start with an ambitious tracker and quit in a week. A simple one survives. The aim is a record you can trust, built from facts you already know right after a session ends. If you want a fuller layout with nine columns and a sample week, see our dose guide for the formula and use this article for the lightest version that still works.
The five field minimum
| # | Write this down | Why it earns its place |
|---|---|---|
| 1 | Date | Counts sessions |
| 2 | Device and distance | Irradiance only means something with a distance |
| 3 | Minutes | The input you control |
| 4 | Calculated J/cm² | Catches arithmetic slips |
| 5 | One line of setup notes | Goggles, position, anything unusual |
Each entry takes under thirty seconds. If you can write a date, a number of inches and a number of minutes, you can keep this tracker.
How to get the calculated J/cm² without a calculator habit
Do the multiplication once, not every day. If you always run the same distance and the same minutes, the answer never changes. Write it at the top of the card and tick off sessions beneath it.
Example numbers for arithmetic only: the FX300 at 6 inches has a published irradiance of 83.5 mW/cm². At 10 minutes that is 83.5 x 10 x 60 / 1000 = 50.1 J/cm². Your card might read "FX300, 6 in, 10 min, 50.1 J/cm²" with ten tick boxes for the month.
If you change distance or minutes, write a new header line. Do not edit the old numbers, or the card will no longer match what happened.
Paper, notes, spreadsheet or app
| Option | Strength | Weakness | Suits |
|---|---|---|---|
| Paper card on the wall | Zero setup, always visible | No formulas, easy to lose | People who run the same setup every time |
| Phone notes | Always with you | Hard to total or sort | A quick record when you are away from home |
| Spreadsheet | Formulas do the J/cm² math, filters and weekly totals | Needs ten minutes to set up | People who change distance or device |
| Dedicated app | Reminders, charts | May add features you do not need, and you depend on the app staying available | People who want prompts |
No option is better for everyone. If you use more than one device, or you change distance, a spreadsheet saves the most effort. If you never change anything, a card on the wall wins.
What an app can and cannot do
Some apps offer timers, reminders and logs. They can help with the habit of showing up. They cannot measure the light your device emits, and they cannot know your irradiance unless you type it in. Check what an app asks for before you give it personal details, and avoid any app that promises outcomes. A tracker should record setup facts and nothing else.
Your panel may have its own timer. The FX500 product page lists a remote and auto off timer, and the FX300 product page lists a built in timer with preset options. Tracking minutes in your own record still helps, because the log shows what you set, not what you intended.
Reminders without pressure
- Attach the session to something you already do at a fixed time, such as a morning routine.
- Keep the card or notes app next to the device.
- Set one weekly reminder to count sessions. Skip daily alerts if they feel like a chore.
- If you miss a day, just write the next entry. Do not backfill from memory.
A monthly look that keeps you honest
- Count how many sessions you logged against how many you planned.
- Check that distance and minutes still match your manual.
- Spot check two J/cm² values with the dose calculator.
- Decide whether to keep the setup or change it, and write the new header.
If something in your own tracking makes you want medical advice, that belongs with a qualified professional. A tracker is a record of how you used a device, not a health record.
Common mistakes
- Starting with ten columns and quitting in a week.
- Writing "about 10" instead of a number.
- Editing old entries after changing the setup.
- Backfilling a week from memory.
- Recording claims or feelings next to setup facts, which blurs the record.
- Trusting an app timer without checking the minutes you actually ran.
Before you use any light device: read the label, follow the device manual, and use eye protection as directed. This guide is general information about arithmetic and planning, not medical advice. For medical questions, speak to a qualified professional.
Related guides and tools
- How to calculate your dose
- How long a session runs, by the manual
- AWA FX500 specs and features
- AWA FX300 specs and features
- Wavelengths, sessions and devices
- Red light dose calculator
Device pages
Read the full page and label for each device before you use it: AWA FX300 panel, AWA FX500 panel. You can also browse the AWA panels, or the Learning Center for more guides.
Frequently asked questions
What should I write down after a red light session?
Write the date, device and distance, minutes, the calculated J/cm² and one line of setup notes. That is enough to repeat the session and check your arithmetic.
Do I need a red light therapy app?
No. A card, notes app or spreadsheet works. An app can add reminders, but it cannot measure your device or replace your manual.
How do I calculate J/cm² for the tracker?
Multiply irradiance in mW/cm² by minutes and by 60, then divide by 1000. Do it once for a fixed setup and write it at the top.
Should I track how I feel?
This guide tracks setup only. If you keep personal notes, keep them separate, and speak to a qualified professional about any medical question.
How long should I keep tracking?
Track as long as the record is useful for repeating a consistent setup. There is no required period.
Sources
- FDA: General Wellness: Policy for Low Risk Devices. January 2026 guidance from the FDA Center for Devices and Radiological Health on its compliance policy for low risk general wellness products. It is a policy document, not a statement about any one device.
- FDA: Premarket Notification 510(k). Explains that companies generally must submit a 510(k) before marketing certain medical devices in the U.S., showing substantial equivalence to a legally marketed device.
Regulatory note: select devices carry FDA 510(k) clearance for specific, limited uses; most are sold as general wellness products. Read each product page and label.
How we create this guide
AWA sells red light therapy devices. We write these guides to explain how devices work and how to choose and use one. This is general information, not medical advice. Read each product page and label. See our editorial standards.
