for pre colured hair if dark brown you can use 2 no less colur with 30 vol and streaking powder
you use 20 volume developer on gray hair
If your hair is naturally dark brown and has not been colored, use 20 volume.If your hair is colored dark brown, you will have difficulties trying to lighten it to the desired level and may need to visit a hair salon for a corrective color consultation.
Depending upon the desired amount of lift, 20 or 30 volume developer should be used when lightening the hair. 20 V. will lift 2 levels and 30 V. will lift three levels on virgin hair. 40 Volume is not recommended.
Yes, your hair will lighten slightly, if you only used a dark brown tint and not black, (black is impossible to remove).Try a Level 5N with a 20 volume cream developer. This will slightly lighten the color that you have now. You could even mix the 5N with a little bit of 6N, just to give it a little boost in lightening.
you need a 10 or 20 developer. Nothing higher. Since your going from light to dark you dont need to use a strong developer to lift color out.
It will lift colour three levels above a base 6 (dark blonde) and it lighten hair two levels below a base 4 (brown).
depends on if you are going lighter or darker. If darker use a 10 if lighter use a 20
Yes. Mix the bleach with 20 or 30 volume cream developer, apply to hair, and keep an eye on it. When the hair has lifted to the desired shade, shampoo immediately and follow with a good conditioner.
Use a 5N (Neutral) + 10 Volume developer. If there are any grays present, mix color with 20 Volume instead.
No, it would be preferable to use 20 volume developer when going from dark brown to black hair color.
uh use lighten dye?
You cannot go lighter on colored hair with more color. If your hair has no permanent color on it, you use high lift developer. 10 volume for every level lighter you want to go. If there is color on it, you'd have to lighten your hair with bleach, then color it. Your best bet is to get it done professionally.