To error on the side of caution we do recommend wearing darkened safety glasses. All of our products come with these glasses for free. Our RedRush lights are very bright and if you have any eye issues (or any other health conditions at all) you should always talk to your doctor before using a device like RedRush.
These wavelengths (660nm & 850nm) have been shown in multiple studies to be beneficial for the eyes and are currently being studied for treatment of certain eye diseases. However, due to the level of brightness it’s a good idea to wear darkened safety glasses, turn on the light away from you, and let your eyes adjust before shining on your face / eyes.