Light is electromagnetic radiation that is visible to the human eye. The radiation has different wavelengths and each wavelength is seen as a different color. Short wavelengths are seen as blue light (~430–500 nanometers), middle wavelengths as green (~520–565 nanometers) and long wavelengths as red (~625–740 nanometers).
Light affects a person’s hormone balance, immune system and metabolism. But not all light is the same. Depending on the wavelength, concentration and intensity, light can brighten up a room, emit pleasant warmth or even help to destroy cancer cells. Blue light is free of ultraviolet (UV) radiation and – in the form used in Philips BlueControl – is not toxic to the skin.
Light-emitting diodes (LEDs) are a highly energy-efficient light source. They have been used in household and vehicle lighting for decades. Now the blue LED light is providing an effective and milld new psoriasis treatment.
When blue light illuminates the skin, it stimulates a variety of natural processes. In the case of psoriasis treatment, blue light suppresses the activation of certain immune cells, the dendritic cells, which reduces inflammation of the skin and alleviates plaque symptoms. The natural blue light psoriasis treatment also helps to reduce the accelerated production of skin cells, which is associated with psoriasis.