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.
40 and 50 volume developers are extremely strong. While they'll lighten your hair much more than the lower concentrations, they can also cause significant damage to your hair and scalp. 30 volume developer is more forgiving and will still allow you to lighten your hair by two to three levels.
How long does it take for hydrogen peroxide to lighten hair? Leave the hydrogen peroxide in your hair for about 30 minutes. Depending on how dark your hair is, how light you want it, and how much irritation the chemical may cause, you'll want to experiment and play around with it.
Will a 30 Vol Developer Used by Itself Lighten My Hair? The release of oxygen will indeed allow the hair to lighten. And 30 Vol will definitely do this to a greater extent than 20 Vol. But we don't recommend that you apply just developer to the hair.
30 volume developer (9% peroxide)
Lightens up to 3 levels. Used for dyeing and also for lightening hair. Suitable for coloring grey hair. The most often it is mixed with permanent color and lightening cream or powder.
It's more common to see a 20 volume developer used to lighten hair up to one or two shades. It has a 6% peroxide content, making it twice as strong as 10 developer products. Even without bleach, 20 volume developers can lift you between colors.
On its own, regular hydrogen peroxide from the drugstore won't lighten your hair because it will dry before any chemical reaction can take place. Combining hydrogen peroxide with baking soda, though, creates a paste that can sit on your hair and work magic, lightening it by one to two shades.
Hydrogen peroxide is commonly used to lighten hair. It may be used on its own or in other blonde dyes. Hair dye with hydrogen peroxide is considered permanent dye, which means that it will only go away as new hair grows.
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.
There's a misconception that bleach will work better the longer you leave it on. The maximum amount of time you should leave bleach on your hair is 30 minutes. Any longer than that and you run the risk of serious damage, including brittle strands.
Permanent hair colour is mixed with 10 vol (3%), 20 vol (6%), 30 vol (9%) or 40 vol (12%) hydrogen peroxide (H2O2), known as an oxidant. The choice of oxidant is key for achieving the correct target shade and depth. The average tube of permanent colour is made up of 10% alkali, 20% H202 and 70% colour molecules.
Your hair turns brassy/orange when you lighten it because the warm colour molecules are the last to be lifted during a lightening process. For a successful, balanced lighter colour outcome, you need to first lift out all the warm colour pigments.
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. What is this? For instance, if you have brown hair and want to lighten it a bit, fifteen minutes will more than likely be enough.
Yes. Developer can damage hair. If you pick a developer that is too strong for the hair texture of your client, it has the possibility of lifting the cuticle so much that it can't be smoothed back down.
Baking soda and hydrogen peroxide
Baking soda can also lighten hair that isn't dyed, but not when it's used by itself. To lighten nondyed hair, you have to use baking soda as a base with hydrogen peroxide. This is a bleaching agent that lightens hair.
Natural bleaching agents like apple cider vinegar, lemon juice, chamomile tea, or cinnamon and honey can lighten hair gently and naturally with minimal damage. Rinse your hair in a solution of warm water and one or more of these lightening agents, then sit in the sun to dry.
A lightening or clarifying shampoo can lift the color and help you get the desired result. You can request that your stylist use a shampoo that is designed to lighten your hair. You can also wash your hair with clarifying shampoo in between salon visits safely to lift the color even more.
Without bleach, 20 volume developer alone can lighten your hair by about one level. So if you're currently a level 5 light brown, using 20 volume developer alone can lighten it to a level 6 dark blonde.
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.
Volume 30 contains 9% hydrogen peroxide and is ideal for altering your hair several shades. It is pretty strong and should only be used on thick or coarse hair, as it can damage thin or fine hair. Many store-bought hair dye and developer packets contain volume 20 or volume 30 developer.
Your mix will be more wet, & more runny. If it is way too runny, you may end up lightening the hair, but not depositing enough color. It will end up thinner, flatter and last less long.
Colorist Kathy Debski says hydrogen peroxide lightens hair by penetrating the strands' cortex and breaking apart the melanin inside and stripping dark color. Yes, this does cause a lightening effect, but it essentially corrodes the strand to do so — leading to frizz, breakage, and split ends.
The longer you leave it on, the more your natural hair color will lift, and the lighter your strands will become. If you only want a subtle change, the amount of time necessary may be less than if you're looking to make a dramatic change, like going from a dark base to platinum blonde.