The volume developer to use depends on the desired result, hair type, and texture. Here are some general guidelines based on the search results:
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10 Volume: Use 10 Volume if you are applying permanent, no-lift hair color. It won’t significantly lift your base color and is the least damaging to the hair. It is also recommended for use on thin or fine hair, as it’s not very strong and won’t overly strip your delicate strands.
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20 Volume: 20 Volume is likely the most used developer in the salon. It will give 1-2 levels of lift when used with permanent hair color. It is the standard developer for grey coverage, and it may even give up to 3 levels of lift on finer fabrics. It is also a good choice for lightening hair in a gentle fashion.
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30 Volume: Use 30 Volume if you are aiming for a 2-3 level lift. It is ideal for lifting 2-4 levels using permanent hair color depending on the texture of the hair. It can also be used for grey coverage on more resistant hair types. However, it should never be used for basic deposit-only color as it can be too harsh on the hair. It is also recommended for use on thick or coarse hair.
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40 Volume: 40 Volume is the strongest developer that makes the biggest impact. It lifts up to four levels and lightens hair quickly. It is often used for high-lift blonde shades and is not recommended for use on the scalp. It can be too harsh on the hair and can cause damage.
It is important to note that the mix ratio of developer to hair color varies depending on the brand and product. Always follow the instructions on the product packaging for the correct mix ratio. Additionally, it is recommended to perform a patch test before applying hair color to the entire head to check for any allergic reactions.
