Botéa Pure Active Shampoo. 5.0. The follicle is the only ‘living’ part of the hair. It anchors the hair by the hair-root and feeds it with oxygen and nutrients. Hair loss can have a medical cause but can also be caused by an infected or malfunctioning follicle, because of a shortage of oxygen, caused by a bad blood circulation. Active Shampoo 5.0 and Active Fluid 5.4 contain powerful ingredients like arnica, inositol, soya proteins and aloe vera, which will clean and revitalise the follicle, so the hair gets the space and power to grow up again.