The invention relates to an illumination device for hair, comprising a support device (110) which defines an
interior space (111) with an outer contour (112), wherein the
interior space (111) of the support device (110) is dimensioned such that the support device (110) is suitable for at least partially surrounding a
human head at a distance. A plurality of light sources (310, 320, 330) are arranged on the support device (110, 350) in a distributed manner, wherein each
light source (310, 320, 330) is configured to emit a
light cone (312, 322, 332) directed towards the
interior space (111). The light sources (310, 320, 330) are arranged and can be controlled by a control device (340) such that light cones (312, 322, 332) from adjacent light sources (310, 320, 330) partially overlap in a
virtual surface (360) spaced apart from the outer contour (112) and reach an average
irradiance (illumination intensity) of 5 to 70 mW / cm2 in the
virtual surface (360), wherein the
virtual surface (360) extends at a distance of 1 to 70 cm from the outer contour (112) and the virtual surface represents the contour of a
human head.