It sounds as if to me that the ash blonde colour that you used may have been a little too intense for your bleached hair. This is why you have a grey blue result. Even though you may only need a slight tonal change in your colour, this is best left to professionals as it is a super delicate process.
If the color used is too cool or ashy, it can create a gray tone instead of the desired blonde shade (1). Hair porosity: The porosity of your hair can affect how it absorbs and retains color. If your hair is highly porous, it may not hold the blonde color properly, resulting in a grayish hue (2).
Wash with Clarifying Shampoo: This can help fade the color. Wash a few times to see if it lightens. Use a Color Remover: Products like color removers can help remove the gray without damaging your hair too much. If the Gray is Permanent: Lightening: You may need to use a bleach to lift the color. Here's how:
It could be that your hair is resistant to tint, especially when the hair texture has changed as a result of going white. But also it could be that by going lighter, either all over, or by introducing (subtle) highlights you would not see the regrowth strip quite as quickly as if it were lighter.
If the cause of greying is genetic, it is not possible to reverse the process, no matter what some marketers on the internet claim. In case of nutritional deficiencies and underlying medical conditions, you can gradually slow down or even reverse the process.
Clarifying Shampoo
Most toners are not permanent, therefore eventually, after several washes, the 'cool' tones will fade. If you want that toner gone quicker, 2-3 washes with a clarifying shampoo will start to remove the blue, grey or purple stains.
When formulating your shade, your colorist will likely use a copper or golden tone to counteract the ash.
For blonde hair, use purple shampoo to neutralize brassy yellow and orange undertones. If you're a brunette, use blue shampoo to get rid of red hues. For ashy hair, try a clarifying shampoo that gets rid of cool tones.
Your hair will mainly be exposed to your tap water due to hair washing. This water is actually filled with metals and minerals, and since blonde hair is very porous, these will be absorbed, causing a slight yellow tint. You may also have heard that blonde hair turns green in swimming pools.
Use A Clarifying Shampoo
They strip off the toner in your hair and reduce the ashy tones. With regular use of a clarifying shampoo, you will see a difference. Your hair will be much warmer and you will feel the ashy tones melt away.
Melanin doesn't produce at the same rate forever. As you get older, your hair follicles make less of it, which leads to less color and, eventually, graying hair. Another reason your hair may turn gray is related to its chemical processes. The cells in your hair naturally produce a small amount of hydrogen peroxide.
Blonde is one of the best colors to cover gray hair because there's only a slight difference between blonde shades and silver shades, so the new dye can be easily blended. Take a look at these fresh blonde color ideas you can try out to cover gray hair.
Simply washing your hair can help fade the grey tones, so can washing with a clarifying/cleansing shampoo. Cleansers remove colour and product buildup, but do go easy with these, as using them too much can cause the hair to dry out.
If you've ever wanted to sport an edgy, 'ice queen' look, ash blonde is for you. Think light blonde with a grey or 'ash' tint. It's blonde with the temperature turned down, basically, leaving a brilliantly unique shade with an undertone of grey and silver.
"You want to stop using it two weeks before any lightening service. The purple shampoo can cause build up making the hair look dull and darker if overused." This makes the lightening process more difficult to create a seamless blend.
Ash blonde colors have a cooler tone than honey or golden blondes. They can range from icy white to a darker blonde with gray undertones.
For ash blonde hair, the single most important rule is to always use a shampoo and conditioner set that's designed to maintain light tones. Thanks to the innovations of hair science, stylists have come up with a solution to keep brassy, yellow shades from ruining your perfect platinum.
Start by washing your hair with a strong clarifying product, such as clarifying shampoo, dandruff shampoo, baking soda, or dish soap. If you need a slightly more powerful solution, try removing the toner overnight with lemon juice.
If you have little or no warm pigments in your hair, the ash colour can give your hair a green tint. The same can happen when your hair is bleached or de-coloured. Here too, the problem is that there is little or no warmth left in the hair and thus no red pigment that can neutralise the green/blue pigment in the dye.
Purple shampoo has been used for decades by hairdressers, mostly to help tone and neutralize blonde and gray hair, getting rid of brassy or yellow tones for an overall more cool-toned look.
This is because it can strip the toner out of the hair! Instead, wait until your toner has faded completely before fixing any brassy tones with a purple shampoo.