LED LIGHT THERAPY MACHINE THINGS TO KNOW BEFORE YOU BUY

you could possibly discover the abbreviation "nm" to the outer packaging for purple light therapy equipment, and Dr. Jody A. Levine, a board-Licensed dermatologist in Ny, suggests this is a crucial metric. It means nanometers and refers back to the wavelength with the light that may be emitted in the device, she points out. unique wavelengths focus