1. Connect the supplied charging cable securely to the cap and a compatible power source. Follow the input rating printed on your device.
2. Let the battery charge according to the instructions supplied with your cap.
3. Disconnect the charger, put the cap on, and press its power button.
4. If it still won’t start, send us photos of the charging connection and device label. Don’t keep forcing the button.

Check the outlet, cable connections, and device input label. Try another working outlet. Don’t assume another device’s adapter is compatible just because its plug fits. If there’s still no charging response, contact us with a photo of the cable and labels.

Yes. The cap has a 6-minute session timer and shuts off automatically. You don’t need to restart it for a second session. If it stops much earlier, charge the battery and try your next scheduled session. If early shutoff continues, contact us.

If the cap can’t complete a 6-minute session after charging it as directed, contact us. Tell us how long it was charging, which power source you used, and how soon it shuts off. Stop using it if the battery area gets unusually hot, swells, smells unusual, or looks damaged.

The cap uses visible red light plus near-infrared wavelengths that you can’t judge by eye. Some light sources may appear dim or unlit even when near-infrared is operating. Don’t stare into the LEDs to test them. If a section has changed or the cap isn’t working normally, send us a photo and the model label.

We designed Mode 1 to work for most thyroid patients. It delivers 9 J/cm² during a standard 6-minute session. Choose Mode 2 if you have a sensitive scalp or prefer a lower-intensity starting setting; it delivers 5.4 J/cm² during a standard 6-minute session. If you develop burning, pain, or irritation, stop using the cap instead of switching modes to keep going.

Press the power button to start in Mode 1. Press it again to switch to Mode 2. To use the pulsed option, choose your mode, then press and hold the power button for 3 seconds. Pulse mode halves the light dose: 4.5 J/cm² in Mode 1 or 2.7 J/cm² in Mode 2 per 6-minute session. All three wavelengths operate together. If your controls look different, send us a photo so we can match the instructions to your cap.

Adjust the cap so it sits close to your scalp without squeezing or causing pressure. Move bulky hairstyles out of the way. Don’t force the fit, pull hard on fastenings, or alter the cap. If the adjustment won’t hold or a strap or seam is damaged, send us a photo for help with the fit or replacement options.

Use the cap on a clean, dry scalp, before applying hair oil or styling products. If oil or product is still on your scalp from the night before, wash it out and dry your hair before the session. For minoxidil or another prescribed topical, ask your prescriber how to coordinate use; don’t change prescribed treatment on your own.

Stop using the cap. Burning or persistent pain isn’t a reason to push through or increase treatment. Contact your clinician about the symptoms and email us about the device. Don’t try another session to see whether it happens again.

Pause use and discuss new or worsening shedding with your clinician, especially if it comes with burning, pain, or changes to the scalp. There are several possible causes, and this guide can’t determine which one applies. Don’t assume worsening symptoms mean the device is working.

Ask the clinician performing the procedure when you can resume red light. This includes scalp injections, microneedling, and hair-transplant care. The waiting time depends on the treatment and how your scalp is healing; there isn’t one waiting period that fits everyone.

Resume your regular schedule. Don’t add extra sessions or extend the 6-minute session to make up for a missed day.

Hair changes take time. Keep a record of your sessions and compare photos taken with the same lighting, angle, and hairstyle. Results vary, and a lack of visible change doesn’t by itself prove the cap is broken. For persistent or worsening hair loss, review the cause and treatment plan with your clinician.

No. The time needed to assess hair changes doesn’t automatically extend the return period. Check the return policy and your purchase date early, and contact us if you’re unsure which policy applies.

Each device has its own controls and routine. Don’t copy another device’s session length onto the cap or swap charging parts unless compatibility is confirmed. Ask your clinician about combining treatments if you have a medical condition, symptoms, or a treatment plan.