Specific colour for trichological dermopigmentation, pre-neutralized to avoid colour alterations over time. Perfect for its: Density, volume, shaved effect. This specific new formulation stems from years of research and development in collaboration with the most demanding and advanced professionals. In the subtractive theory of colour, Bistro is the sum of primary colours from which a perfectly balanced colour is obtained. This magic effect has been translated into a pigment to enhance your creations.