Yes, if mixed equally, a 10V + 30V= 20 Volume developer.
Mixing 10 Volume developer and 40 volume developer will never make a 20 volume regardless of how much is mixed. In order to make a 20 volume, equal parts of 10 and 30 volumes will need to be mixed. Mixing 10 and 40 will make 30 volume.
To make a 20 volume developer using 10 volume and 30 volume, mix equal parts of each (1 part 10 volume and 1 part 30 volume). This creates a balanced solution that averages out to approximately 20 volume. Alternatively, if you have 10 volume and 40 volume, mix 2 parts of 10 volume with 1 part of 40 volume to achieve the same result. Adjust the ratios to maintain the average desired volume if using different combinations.
NO. If you mix them in equal parts, that would give you 35 volume. To get 15 volume, mix equal parts of 10 and 20 volume.
20
10 minus -20 is 30.
Equal parts of 10 & 30 V. developer will yield 20 v.
Mixing 10 Volume developer and 40 volume developer will never make a 20 volume regardless of how much is mixed. In order to make a 20 volume, equal parts of 10 and 30 volumes will need to be mixed. Mixing 10 and 40 will make 30 volume.
No, you cannot make 20 volume developer using 30 volume developer. The concentration of the developer is fixed and cannot be altered by dilution. It is important to use the correct volume developer as specified in the instructions for the best results and to avoid damaging the hair.
Equal parts of 10 & 30 V. developer will yield 20 v.
It won't make it 30. The way developer works is 10 is no lift deposit only and makes hair semi permanent. 20 is 7-10 shades of lift with deposit and makes hair colour permanent. You have to buy 30 volume developer from a sallys beauty supply but 30 is very dangerous for the hair it can damage it severly I recommend sticking to just 20 volume
No, diluting a 30 vol hair developer with water will not change the volume strength of the developer. To make a 20 vol developer, you would need to mix the 30 vol developer with a neutralizing solution or a lower volume developer.
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 achieve a 30 volume developer solution, you can mix equal parts of a 20 volume developer and a 40 volume developer. This will result in a 30 volume developer solution.
10 volume is if you want to go dark with color but with bleach 10 vol gives you one level of lift but if it seems slow to you use 20 volume, never use 30 vol or 40 vol on scalp it will irritate it.
To make a 20 volume developer using 10 volume and 30 volume, mix equal parts of each (1 part 10 volume and 1 part 30 volume). This creates a balanced solution that averages out to approximately 20 volume. Alternatively, if you have 10 volume and 40 volume, mix 2 parts of 10 volume with 1 part of 40 volume to achieve the same result. Adjust the ratios to maintain the average desired volume if using different combinations.
No, you cannot make 30 volume developer out of 40 volume developer. You would need to dilute the 40 volume developer with either distilled water or a lower volume developer to achieve the desired 30 volume strength.
in my time with color i found you can sometimes lift with a 30 volume if your hair is not too dark, the 30 will lift and deposit as to 20 and 10 only depositing the color.