How will the yellow tone look on my current hair colour? — TONING SEMI-PERMANENT EFFECT COLOR Bad Girl FULL MOON YELLOW 150ML

Because this is a direct dye that deposits pigment without lifting your natural melanin, the starting base determines everything. On hair that has been lightened to a very pale blonde (level 9–10), the yellow shows as a clear, saturated tone — think lemon or golden yellow depending on how long you leave it on. On natural white or grey hair the pigment lays down evenly and can look quite intense, almost like a highlighter yellow if the hair is porous. On darker blonde or light brown hair you will not get a true yellow; instead the pigment adds warm, golden reflective highlights that catch the light. On medium to dark brown the effect is barely visible, maybe a slight warmth in sunlight. If your hair is unevenly lightened — for example, roots darker than ends — the colour will take differently on each section, so a strand test on a hidden piece is the only reliable way to preview the result.