Question in dyeing: how to dye blonde hair black without it turning green?

It is common knowledge that going darker from blonde can succeed without difficulty. No matter how easy it is, you can get in trouble either. Off-tone, especially going green, is one of the most popular failures you can take when dyeing. So how to dye blonde hair black without it turning green? Today, we will help you solve this problem.
What leads your going-black process to turn green?
Some hair professionals, including Clairol Professionals, say if your hair is too porous when being dyed a new color, green tints will appear. It is due to the lack of nutrients of your hair. Overly porous hair does not have enough natural color to support the tone in hair dye, which results in the color becoming off-tone.
In addition, bleach is an element leading to seaweed-green hair color. After bleaching, your hair will lose a lot of natural pigmentation and reduce its absorptive capacity. Therefore, the damaged hair only retains certain pigments. If you dye your hair with cool shade, it is easy to get green.



Besides, bleached hair color may turn green if it is exposed to chlorine repeatedly in a long time. Your hair will have chemical reactions to chlorine which results in bright green hair color.
How to dye blonde hair black without it turning green
The better condition your hair has, the higher ability the dye can stay on your hair. A healthy hair makes every hair makeup as a piece of a cake. Therefore, you need to prime your hair before dyeing. Try to wash it in right way, apply nutrients by conditioner and other hair care products. Besides, you should not dye other hair color or bleach it in 3 months at least. The former hair dye prevents the new one to hold on to your hair. When dyeing a new color, you need to get ready to shorten your hair. Cutting damaged hair is necessary to have an even hair color.
See more: Vietnam Hair, Vietnamese hair, Vietnam human hair

Choose right shade of hair dye
It is really easy to get darker rather than lighter. However, the shade of your hair will affect to the risk of off-tone hair color. It will be a great idea to choose a shade which is cooler than your expected color.
If you want deep black color, you should be careful with its pigment ingredients. Some deep black dyes include other color pigments such as green, blue and purple. Therefore, your hair has higher capacity to turn green.

Use pigment filler
If your hair is too damaged, your hair doesn’t have ability to retain some specific pigments, especially lighter color pigments. If you want to darker hair color from blonde, it can end up greenish. So how to dye blonde hair black without it turning green? Pigment filler is ideal for hard-to-color hair and is often used in color correction applications. It has ability to restores the pigments that are lost when bleaching. After filling, the hair is ready to absorb the darker dye.