Take full control of the eyebrow bleaching process with the ZOLA x Makarevich Eyebrow Indicator Shampoo. This innovative shampoo is specially designed for professional eyebrow stylists and makes cleaning bleach and pigment removers simple and precise. Thanks to smart pigments, the color changes from yellow to pink when residues are still present. This way, you always know for sure that the eyebrows are perfectly prepared for coloring.