Chọn toner (sản phẩm cân bằng tông màu tóc). Chuẩn bị và thoa toner. Gội đầu.

I'm interested in that, but I only have a few mins. Can you give me at most the first 500 characters of a detailed explanation in English about that?
This is a crucial step for achieving a beautiful, balanced finish. Bleaching removes the color from hair's pigment, and eventually what remains is a yellow tinge - this is the natural color of keratin, or the hair's protein. Most of the time, this is not what we're after. That's where toners come in: these colors help balance out undesired tones, adding subtle nuances to your hair color and helping you get just the blonde you want.   Dark hair usually has red or orange undertones, so bleaching t