Yes a 40 developer will lift your hair color 4 times. It will lighten your hair.
You will need to mix it with a color and follow the directions on the box or packaging.
It will remove the pigment from your hair and lift your hair color 3 times (lighten it).
Cream developer alone will not lighten your black hair. You will need to use a bleach or lightener with the cream developer to lighten it.
To cover gray hair and dye brown hair dark blonde, it's recommended to use a 20 volume creme developer. This strength provides enough lift to lighten the hair slightly while also covering gray effectively. Be sure to follow the instructions on the hair dye kit for best results.
The ratio of 40 volume creme developer to permanent hair color is typically 1:1. This means you would use the same amount of developer as you do hair color. For example, if you mix 2 ounces of hair color, you would also use 2 ounces of 40 volume creme developer.
20 vol
When used alone, developer will do nothing to the hair. It is made to be mixed with a hair color.
yes.
Yes, you can use a 30 volume developer instead of a 20 volume developer, but it will lighten the hair more dramatically and may lead to more damage. A 30 volume developer is typically used for significant lifts, while a 20 volume developer offers a gentler option for less lift and is better for covering gray hair. Be sure to adjust your processing time and consider the condition of the hair to avoid potential damage.
You have to have a actuall hair color to mix with it. Use 2oz of the color and 4oz of the developer and mix. And apply to your hair
Yes, bleach or a high lift color mixed with 30 vol. developer is needed in order to lighten hair.
Yes, but it wouldn't work as good you would have to use a lot more creme
Mixing a 20 volume creme developer with a dye that already contains developer may result in an overly strong developer concentration, which can be damaging to your hair. It's generally recommended to use developer specific to the dye you're using to ensure proper color development and hair health.