Pro Colour. The Brow Colorist – Semi-Permanent Brow Mascara is based on a longlasting gel formula enriched with fibres and has a tint effect on the brows. Applied regularly, it intensifies the natural colour of eyebrow hair step-by-step. Its ultra-precision brush ensures perfectly shaped brows. Beauty Tip If you want to make a statement with your brows, precision, volume and consistent colouring are a must. Not a problem with the Brow Colorist – Semi-Permanent Brow Mascara! Special benefit: if you use the mascara regularly for a period of about two weeks, it gradually tints the eyebrows. This automatically makes them look fuller and naturally beautiful.