Test yourself for light sensitivity prior to initial treatment:
* Power on device.
* Place device on or no more than ¼” from the skin on your forearm for 3 minutes.
*After 3 minutes, check the area. If area has turned red and lasts for more than 2 hours, your skin is light sensitive.
* Discontinue use and contact Customer Service at 1 (800) 337-9565.