20 vol
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.
Mixing a 20 volume creme developer with a 30 volume creme developer will result in an intermediate volume of developer, likely somewhere between 20 and 30 volumes. The resulting volume will depend on the specific ratios of the two developers that are mixed together. It is important to note that altering the volume of developer can affect the outcome of hair color or chemical treatments, so it is recommended to use the developer volume specified in the product instructions for best results.
Mixing equal parts of 20 V. and 40 V. developers will give you an approximate 30 volume developer.
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.
When used alone, developer will do nothing to the hair. It is made to be mixed with a hair color.
Mixing a 30 volume creme developer with a 40 volume creme developer is not recommended as it can alter the desired outcome of your hair color process. The resulting mixture may have an unpredictable volume, potentially causing damage to your hair and scalp. It's best to stick to the developer recommended for your hair coloring product for best results.
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.
I would say it depends on your hair type and what kind of developer you used
A 10 volume creme developer is a type of hydrogen peroxide solution used in hair coloring or bleaching to lift the hair color by one level. It is a gentle developer that is suitable for deposit-only color, toning, or color correction with minimal lifting. The "volume" refers to the strength or concentration of the peroxide in the developer.
Equal parts of 10V. Developer + 20V. Developer= 15 Volume Developer
darker!
A 5 or 10 volume developer are best for darkening, or depositing, hair color.