Learn in a very facial way to neutralize the yellow, red, orange and green tones among others that you do not like in your hair. Watch this video as many times as necessary until it is clear to you how to apply the dye so you do not get colors that you do not want to. If you can understand the color star, you will be a great stylist of color, and with this you will not be afraid to apply dyes because you will know how to correct colors that you do not like.