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Also asked, should I use 30 or 40 developer?

Choose a 30 volume developer when you want a developer that is stronger for a lighter and deeper color. It will lift your hair four shades and is suitable for blondes, especially high-lift colors. You can use 40 volume developer when you want to achieve a medium to dark blonde.

Additionally, what does 30 volume developer do? Use 30 Volume Developer 30 volume developer allows you to lighten the hair while coloring by two or three levels, and allows more pigment to embed into the hair shaft. If your hair is not very damaged and you want a lighter and more long-lasting color, 30 volume developer can be a great option.

Also to know is, what does 40 volume developer do?

Developers come in many strengths and 40 means that it will lift hair 3 to 4 levels higher depending on the natural level of your hair. If the developer (40 volume) is applied to hair that is already light, very light or pale light, it will make those strands even lighter.

Will 30 volume developer lighten hair by itself?

Because 30 volume developer cannot bring effectively to lighten your hair by only itself. It just makes your hair a little lighter than your natural color hair. Hence, in order to get the full effect, 30 volume developer should be combined with bleach powder or dye powder to lighten your hair fastest.