Is 20 or 30 Developer stronger?

20 volume is the highest level of developer that should be used on the scalp with bleach as the scalp produces more heat and increases the power of the developer. 30vol developer is ideal for lifting 3 levels using permanent hair color depending on the texture and natural depth of the hair.

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. The 40 volume developer is the strongest and has the potential to produce significant changes. It will lift your hair four shades and is suitable for blondes, especially high-lift colors.

What do different levels of developer do?

What Are The Different Volumes of Developer? 10 volume developer is meant to deposit pigment into the hair without lift. 20 volume developer is intended to lift the hair 1-2 levels. 30 volume developer lifts the hair three levels, and 40 volume developer lifts four levels.

How do I know what developer to use?

Choose developer strength according to how many levels you need to lift. Use 20 Vol developer for 1-2 levels, 30 Vol for 2-3 levels & 40 Vol for 3 levels. If you are going more than 3 levels lighter, you will need to use bleach first. Stick to the recommended color and developer mix rules.

Does 40 Developer lighten hair?

For lightening purposes without bleach, you’ll need to know which developer volume is safe and effective to use. The most common developer volumes are 10, 20, 30, and 40. But you’ll get the best results from using either 20 or 30 volume developer to lighten your hair.

Is 40 Developer too strong?

40 Volume Developer, containing 12% hydrogen peroxide, should only be used when faced with truly stubborn hair situations and that too on the lengths only – never ever on the scalp. It has extremely strong lifting power, but because it opens up the hair cuticle so much, it can damage the hair cuticle unnecessarily.

What developer do I need for brown hair?

If you are bleaching dark brown or black hair you may also need to use 40 volume developer, but keep in mind that this will be the most damaging for hair. It has 12% peroxide, and that can cause burns on sensitive scalps.

Can I use 20 volume developer instead 10?

For more than 25% grey hair, we recommend 20 Vol rather than 10 Vol. You will be softening the cortex more and depositing color pigments deeper, not just coating the outside. The hair color will also last longer that way.