Oh, dude, using 40 developer when bleaching hair is like trying to cook a hot dog with a blowtorch. Technically, you can do it, but you're probably gonna end up with a charred mess. Stick to a lower developer for a safer and more controlled bleaching process.
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.
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.
Which developer you use will depend on the color you want to achieve. A 20 developer will give you a darker color than a 30 or 40 developer.
30 or 40 depending how bright you want it
It is possible to color your hair then dip dye it afterwards in the same day. However, it is recommended that you use a 10 developer or a 20 developer, as a 30 developer and a 40 developer can cause more damage to your hair. It is also not recommended to bleach your hair more than once every two weeks.
20 Volume (or 6%) developer will lift hair 2 levels and 40 Volume (or 12%) will lift hair 4 levels.
No. Rinse is a temporary color. 40 volume developer is used for high lift color, lifting more than 4 levels. When you apply 40vol to your hair, you are lifting the cuticle layer of the hair, difusing pigment inside the cortex and preparing for lift. This causes a certain amount of damage to the hair. It would not be a good idea to use this for a rinse. I would suggest seeing a professional if you want good results. There is a reason professionals go to school to learn these things :)
yes
flashlightning 30 vol. or 40 vol.
Mixing 10 volume cream developer with 40 volume cream developer could result in an unpredictable reaction, potentially altering the intended chemical properties of the developer. This could affect the color result and the effectiveness of the hair color product. It is best to use the developer recommended by the hair color product manufacturer for optimal results.
Mixing 20 volume creme developer with 40 volume creme developer can result in an intermediate strength developer solution, depending on the ratio of each. However, it is not recommended to mix different volume developers as it may alter the desired results and could potentially be harmful to the hair. It's best to use the developer strength recommended for the specific hair coloring product being used.
To create a 30 volume developer solution with a 40 and 30 volume developer, you can mix equal parts of each developer together. For example, mix 1 part 40 volume developer with 1 part 30 volume developer. This will result in a 35 volume developer solution, which is close to 30 volume. It is important to perform a strand test before using the mixed developer on your hair to ensure it is the desired strength.