What is the difference between 20 and 40 developer?

What is the difference between 20 and 40 developer?

40% developer is a very strong lift or intensity for the color , 30% developer is a medium lift for 5 shades and is strong , 20% developer is standard lift and what most people use to dye their hair .

What developer do you use with Wella?

The Wella Colour Charm Toners need to be mixed with Developer. You can use either 10 Vol Developer or 20 Vol Developer (more on this later).

How much developer do I use with Wella color?

Mix 1 part Wella Color Charm Color (or any permanent hair color) with 2 parts Well Color Charm Cream Developer. Apply to the hair using your desired technique, develop for 30 minutes and up to 45 minutes if additional depth or gray coverage is needed.

What does volume 20 developer do?

The 20 volume developer opens the hair cuticle but unlike 10 volume, it provides lifting of the hair by one to two levels. For instance, if you have more than 50% gray hair, 20 volume developer is the only developer to use for 100% gray coverage and a long-lasting color.

How long do you leave 20 volume developer on?

You shouldn’t leave 20 volume developer bleach in your hair for more than 30 minutes. However, 30 minutes is a long time. Ideally, you can remove the bleach before reaching the 30-minute maximum, but the actual timeframe will depend on your natural hair color, preferred shade, and hair type.

What developer do I need to go darker?

If you’re going darker, you should use 10 developer. 20 – 40 developer can be used to lift 1-4 levels. 20 developer is best for grey coverage.

Can you use 20 developer toner?

When you apply a toner mixed with a developer on recently bleached hair, you can correct the tone of the hair. A 20 vol developer (6%) is designed for grey coverage or one level of lift, not toning. Fill up the empty toner bottle with volume 20 developer and pour it. Keep the mix at 1 part toner to 2.

How much developer do I use for 3 oz color?

One part hair color cream should be mixed with two parts developer. For medium-length hair, 1 oz. of hair color mixed with 2 oz. of developer for a total formula mixture of three oz. will be enough to get the right result.