30
you can but it will make your hair extremely orange or brassy. It would be better for you to use bleach with the 20 volume developer..20 volume does the least amount of damage to your hair..just be sure to build the strength of your hair back up with conditioning treatments.
20 Volume developer should be used when toning hair.
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.
When used alone, developer will do nothing to the hair. It is made to be mixed with a hair color.
A 5 or 10 volume developer are best for darkening, or depositing, hair color.
A 20 volume developer will be sufficient for coloring facial hair, especially if there are some grays mixed in.
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 or 30 Volume developer is recommended for blonding.
It is not recommended to dilute hair developer by adding water as it can alter the effectiveness of the product. It's best to use the developer at its intended volume for optimal results.
It is not recommended to double the volume of developer to achieve the desired strength. Using a 10-volume developer when a 20-volume developer is needed can result in uneven hair color or ineffective processing. It is best to use the correct developer volume for the hair color you are using.
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.
For optimal gray coverage, a 20 Volume Developer should always be used.