| 摘要 |
The invention provides a light emitting device having an array of light emitting diodes (LED). The array of the device is arranged to illuminate a surface area of a scalp and the LEDs exhibit a plurality of wavelengths within the near infrared region of the electromagnetic spectrum between about 600-1000 nm, wherein the plurality of wavelengths synergistically combine to decrease follicular apoptosis. The array of light emitting diodes can include LEDs that are pulsed and can contain an array of light emitting diodes corresponding to about 30-200, preferably about 50-150, and more preferably about 80-120 LEDs. The light emitting device of the invention also can include a headband or a stationary mount or other mount for positioning over a target area. Also provided is a method of reducing follicular cell apoptosis. The method includes illuminating a surface area of a scalp containing a follicular hair cell for an effective period of time with an array of light emitting diodes (LED). The array of LEDs exhibit a plurality of wavelengths within the near infrared region of the electromagnetic spectrum between about 600-100 nm, wherein the plurality of wavelengths synergistically combine to decrease follicular cell apoptosis. The method can include inducing an increase in nitric oxide production compared to an untreated follicular hair cell as well as inducing mitochondrial chromophore activation. An effective period of time can include about 5-30 minutes, about 10-20 minutes or about 12-18 minutes and can promote vaso perfusion of the scalp or reduction in hair loss.
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