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Wella developer FAQs

What does the 30 vol developer do?

The 30 vol developer helps you to lighten your hair by providing you with up to three levels of lift, while also allowing hair pigment and colour to be embedded in your hair.

What happens if I use the 20 developer instead of 10?

The 20 volume developer will open the hair cuticle, but it'll lift the hair by two levels, which is what the 10 volume developer does not do.

What happens if you put too much developer in hair dye?

If you put too much developer in hair dye, your mix will be more wet and runny, and it will lighten your hair more than you might want.

What strength of developer should I use for my hair?

You need to make sure that you use the correct strength of the developer. For 1-2 levels lift, you need to use a 20 vol. developer. For 2-3 levels, a 30 vol. developer is best.

Can I use Wella hair colour without developer?

You can always use hair dye without a developer, but the results will not be as permanent as the ones you'd get with permanent hair dye. Also, keep in mind that not all dyes are made to be used with developer.

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