Read the directions on the bottle. Every brand is different.
The colour will not take, you need the developer to activate the colour. I disagree. I died my hair today with Feria Intense Auburn without any developer, and it is bright red and looks great. I have long hair, so I don't use the developer bottle and replace it with an equal amount of conditioner and leave it in longer. It will fade quicker, but won't damage my hair.
I would say it depends on your hair type and what kind of developer you used
Will heat destroy hair developer
long hair
Yes, cream peroxide is developer.
Read the package. Every dye is different, and it will tell you in the instructions how long to leave it on.
20 Volume developer should be used when toning hair.
A creme developer is used on the hair to help lift and tone the color. The developer will speed up the lightening process of the hair and is typically used when bleaching or highlighting the hair.
what is the bet developer for covering gray hair? My hair is dye 6-87 copper red
When used alone, developer will do nothing to the hair. It is made to be mixed with a hair color.
No, it lifts your natural hair color by use of the developer. The higher the volume of the developer the more lift you will get in your hair.
For 1 part hair color and 2 parts developer, you should mix them in a 1:2 ratio. This means using twice as much developer as hair color. Ensure you measure accurately and mix well for best results in coloring your hair.