A system for improving a hair condition is provided in various embodiments. The system can have a sensor device having at least one sensor for detecting a hair condition parameter and a treatment device. The treatment device can have an illumination device for illuminating a scalp of a user with light andan electronic circuit device coupled to the sensor device for receiving the detected hair condition parameter and/or a treatment parameter determined from the hair condition parameter by employing the sensor device, wherein the electronic circuit device can be configured to control an illumination of the scalp of the user using light by employing the illumination device based on the received detected hair condition parameter and/or the treatment parameter.
