I do a natural highlight in foils alternating 2 colors. One is a bleach lightener, the other is a high lift blonde with violet and blue undertones. I use Redken Up to 7 lightener and Redken Blonde Idol high lift. After the highlights have processed I tone your roots at the shampoo bowl blurring the highlights and giving the color a lived in, natural look. I use Redken Shades EQ 9GB, 9NB and 9V for 5 min on towel dried hair. Sometimes I will tone the ends using 9V.