Firstly, if the person who did your color is a real pro they will offer to do any adjustments (within a reasonable amount of time, 7-10 days) free of charge. What you see in the salon may not always be what you see in your daily life, at home, work or in the car for example. You may decide that the color does not suit your skin tone. To assure correct tone to complexion results I suggest a color draping session for new color clients or when making big changes to existing color. You might just not like the color having tried something new.My policy concerning hair coloring services has always been 100% satisfaction guaranteed . If your colorist argues with you or somehow tries to make it your fault, I suggest finding a new one.
Normally if all you need is to cool down or neutralize warm, gold or brassy tones it is an easy fix. It should not cost more than regular color. If your color is too cool, ashy, or you want to go lighter all over ( more than possible with highlights) artificial color removal will be a necessary first step. We cannot warm up a cool color simply by applying something over it. Normally corrective color is charged for by the hour. Expect anywhere from $75.00 and up depending on your salon’s location. It is a process which must be taken one step at a time until the desired results are achieved. There is no rushing this, it just takes the time it takes.I always suggest seeing the colorist for a free consultation prior to booking to make sure that enough time is allotted to do things right!
You may be tempted to do a box color by yourself at home, word of warning. The color companies know how much training is required to make a Master Colorist, to learn the rules of color. Chances are it is not going to turn out the way you expected. You might start off thinking you are saving money but end up spending 2, 3,or even 4 times more than it might have originally cost to have it done by a pro!