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.
What does 20 developer do to black hair?
20 volume developer is used to slightly lighten hair (up to 2 tones) and allow permanent pigments to get inside the hair cuticle. Most hair dye will require a 1-to-1 20 volume developer to hair color but if you are using high lift hair color you’ll want to go up to 1-to-2. Always check the instructions on the dye.
Should I use 20 or 30 volume developer?
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. … Choose a 30 volume developer when you want a developer that is stronger for a lighter and deeper color.
What does 30 developer do to black hair?
Using 30 Volume Developer to Lighten Black and Dark Hair Colors. Since it is a stronger developer, a 30 volume developer is one of the best product options to lighten black hair and dark hair colors. If you use a developer with a volume of over 40, there is a higher chance that there will be damage to your hair.
What volume should I use for black hair?
For dark brown to black, you need 30 or 40 volume depending on hair texture (30 for fine hair and 40 for coarser types), which gives maximal lift. Never go beyond 40 volume—it will burn your scalp and destroy your hair. When bleaching close to the root, 20 or 30 volume may suffice.
Does 20 volume developer lighten black hair?
You can! Developer itself has some kind of a lightening effect and therefore you can lighten your hair with it. Volum 20 developer can lighten up your hair one shade. If you want to go lighter than one shade you should mix the developer with bleaching powder.
Will 10 volume developer lighten hair by itself?
Yes, 10-volume developer does lighten hair, but only by half a tone. A 10-volume developer is used to make small changes in hair color. This is what colorists call “illumination.” … Lightening hair more than two tones is called bleaching and is done with a 30-volume developer and bleaching powder.
How long do you leave in 30 volume developer?
You should leave 30 volume bleach in your hair for no longer than 15 to 30 minutes. The exact amount of time depends on your natural hair color and your desired result. For instance, if you have brown hair and want to lighten it a bit, fifteen minutes will more than likely be enough.