Abstract: A beauty device includes a light irradiation section having a blue LED, a yellow LED, a red LED, and near infrared LED each of which emits light with a predetermined wavelength to a face A, and an oxygen supply section 2 that supplies oxygen to the face A.

Abstract: A mouthpiece of the present invention includes a light irradiation section for irradiating the front surfaces of teeth with light having a predetermined wavelength, and the light irradiation section has a blue light emitting diode or an ultraviolet light emitting diode. The mouthpiece is to be attached to the teeth, and the front teeth are irradiated with a blue light or ultraviolet light emitted by the light emitting diode, thereby performing teeth whitening processing.

Abstract: A beauty device includes a light irradiation section that irradiates light of a predetermined wavelength, and an ion generating section that generates an ion. The light irradiation section is placed at one side surface of a main body of the beauty device, and the ion generating section is placed at the other side surface of the main body of the beauty device. The light irradiation section includes a plurality of light source modules arranged in a predetermined array. Each light source module includes a plurality of light emitting diodes that are arranged in a predetermined array to emit light of two or more wavelengths.