This hair color (Lilac) can be either very light bleached hair (pastels work only on extremely light hair) tones trendy colorful and there is no danger, completely washed out as substantive hair color. Or you can get a half a teaspoon in his flush or cure mix (Note: It may look very pale purple) to the typical yellow tinge to the blonde dye from his hair to remove! But that has to be repeated regularly as the hair color as already mentioned, can be washed out. Unfortunately, I have almost white blonde streaks in my "yellow" hair that ;-) then naturally bright purple dye very delicate, for the remaining hair is then ashy beautiful - and I am now times everything rather than walking around with yellow hair! ;-)