Today Viknews introduce : Do you want to change your hair color? You will need to use some chemicals, especially if you plan to switch from darkness to light. In fact, you don’t need to bleach your hair, but it is essential to use a developer when coloring your hair.
If there is no developer, the hair dye will not work properly. It’s like applying watercolor on your hair. When the color fades, it will last for 5 minutes, and then the color will fade. This is because the peroxide in the developer will open the cuticle of the hair and allow the dye to penetrate.
However, one thing you need to know about using developers (and bleach) is that they are dangerous and should be used with caution because they can damage your hair and scalp. This includes washing after the recommended time.
This is a comprehensive guide to everything you need to know about developer and bleach, starting with “How long do you bleach your hair for 30 Vol?”
See More : How long to leave bleach in hair
Video 30 volume bleach on black hair
How long to leave bleach in hair 30 vol?
The mixture of bleach and developer can stay on the hair for 15 to 30 minutes, but cannot continue. The exact time to bleach your hair depends on your current hair color and goals, but any time longer than 30 minutes runs the risk of damaging your hair and scalp.
Generally speaking, the lighter the hair, the longer the bleach re-soaking time, up to 30 minutes. If the color improvement effect you want is not achieved, you can reuse the bleach, but do not let the bleach stay for more than 30 minutes.
This is because bleach and developer are powerful chemicals that not only change the color of the hair, they can also damage the hair. It will dry out your hair, make them brittle, and even kill your hair completely.
How long do I have to leave 30 volumes of bleach to brighten my hair?
30 volume developer to lighten hair without bleach : How long must I leave the bleach on my hair for safe operation? Well, it is generally recommended to keep this chemical for 15 to 30 minutes to get the desired result without causing serious damage to your strands.
Of course, this depends entirely on the current condition, color, and goal of the bristles, but the general selection duration is 15 to 30 minutes. Bleaching times longer than 30 minutes will start to damage your hair, because the general rule is that if you want your hair to be lighter, you must bleach your hair longer.
Hair dyeing is a very stressful process for our bristles, but bleaching is much worse. These corrosive chemicals can affect your hair and scalp, so if you use it for too long, it will not only damage your braids or the shade you want, but also seriously damage the skin on your head!
If you need to keep 30 volts of bleach on your black hair, the time is the same. For hair developer, which is often used with bleach, the use time is different.
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How Long to Leave Bleach In Hair 20 vol
How long to leave bleach in hair 20 vol? This question is often asked by novice hair dyes who have not yet determined how to use hair dye.
And you may think that the effectiveness of the bleach will affect the use time, but basically, whether it is 20vol or 30vol bleach, you basically have to adhere to the 15-30 minute rule.
Bleach is harmful to any grade, so no matter if it is useless.
The Difference Between Hair Volume Developer Strengths
Let’s start from the basics and understand the differences in hair developer levels. Developer is a chemical substance that, when mixed with hair dye or bleach, opens the cuticle of the hair.
Contains hydrogen peroxide and is indicated by a number (10, 20, 30 or 40) on the developer packaging. Let us dive into the advantages of developers.
- If you want to darken your hair to the next level, a 10 volume developer is the perfect choice for you. Due to the low peroxide content (3%), 10 times the amount of developer will add tones or shades with the same brightness level as the base color. So from light to dark or non-irritating hair color is perfect.
- 20 volume developer is mainly used for permanent dyes or temporary colors. Contains hydrogen peroxide (6%), which is very suitable for 100% gray or gray hair. Unlike 10 times the amount of developer, it can open the hair scales and brighten the hair in 1 to 2 steps.
- Volume 30 developers are similar to volume 20 developers. However, due to its high peroxide content (9%), it can brighten the original hair color by 2-3 levels. If the hair color you want is not lighter than the original hair color by 2 or 3 shades, this is a good choice. Therefore, if your hair is dark and you want honey blonde curls from dark to light brown, then “30 Volume Developer” is your best choice.
- 40 Volume Developer is the most powerful of all developers and can significantly change the color of hair. With a high peroxide content (12%), you can dye your hair in up to 4 shades with 40 volumes of developer.
Warning: We recommend using only 40 volumes of developer under the guidance of a hair dyer, as it may adversely affect your hair.
Does 30 volume developer damage hair
All hair developers will cause some damage to the hair cuticle, but fortunately, there are ways to minimize this hair damage and maintain natural curls.
It is important to prepare your curls before bleaching to avoid serious damage.
- For 2 weeks before bleaching, apply a moisturizing hair mask at least twice a week to provide intensive nutrition.
- The night before bleaching, apply organic coconut oil to the curls. Cover your head with a shower cap and put it on overnight. Do not flush oil. Coconut oil prevents protein loss by forming a natural barrier between the developer and hair fibers. do not worry. It does not affect the final result.
- Arrange thermal styling tools and highly manipulated hairstyles before bleaching your hair.
How to use 30 volume developer
If you are curious about the safest way to use 30 Volume Developer curls, please see here. We will guide you step by step through the entire process to achieve the desired results without damaging your hair.
The first step is to prepare the curls for bleaching. Divide the hair into eight parts. Use a wide-toothed comb to loosen each part, divide it in half, and screw it all the way down.
This step will help increase curl and make the coloring process easier to manage. If you have very short hair, you do not need to perform this step.
Apply petroleum jelly or oil (coconut oil or olive) to the hairline and top of the ears to protect the skin from the bleach mixture.
You can read : Good Molecules Discoloration Correcting Serum Review
Mix the Bleach and Developer
- Put on gloves and pour the bleach and developer into a plastic bowl. You can purchase these two products individually or as a kit.
- Different brands may have different mixing and coloring steps, so always make sure they are from the same brand.
- In most cases, you should follow a 1:1, 1:2, or 1:3 ratio (bleach to developer). The 1:2 ratio is the standard measure for bleached curly hair. 1 part bleach and 2 parts developer.
- Produces a thick mixture that is relatively easy to spread evenly without being too messy. If you are not sure how much developer and bleach to use, please refer to the instructions on the product packaging or ask your colorist.
- Make sure that the bleach mixture is enough to cover the entire hair. 4 ounces of developer should be suitable for shoulder-length curly hair.
- Mix bleach and developer thoroughly until there are no bleach lumps. The pancake batter should be consistent.
Apply bleach mixture
- Select a part from the back and undo the distortion. Use a dyeing brush 1/2 inch from the roots to apply the bleach to the hair. Reverse the part again and repeat the process for all other parts. Be careful not to miss any points.
- Don’t let the bleach stay on your hair for too long, even if the color is not bright enough. Leave the bleach on for the recommended time (15-30 minutes or as indicated on the package).
- Wipe off a little bleach every 5 to 10 minutes, and then observe the hair to see the effect. If it is bright enough 15 minutes ago, you can wash it off earlier.
- Or, you can use the test wire to complete the entire process to determine how to accurately bleach your hair. If left unattended for a long time, 30 rolls of developer may cause a lot of damage.
- Wash your hair with a neutralizing shampoo, and then deep-condition it to replenish the water lost during the bleaching process. If you don’t get the boost you want, you may need to bleach your hair again. It is best to wait at least 3-4 days before repeating this process.
- It is not recommended to complete the process multiple times to obtain light-colored hair.
- If your hair turns orange, don’t worry. This is not something that a good toner can solve. Please read the instructions carefully before applying on your hair.
Is 30 volume developer bad for your hair
30 The chemicals used in Volume Development are “not good” for your hair. Although the bleaching process will not automatically damage your hair and make you bald, it is important to know how long the bleach should stay on your hair.
Frequently asked questions
Should I use 30 or 40 volumes of bleach?
If the desired hair color is 2 or 3 orders of magnitude brighter than the original color, use 30 Volume Developer. The most powerful developer, a 40-volume developer, can significantly change the color of hair and cause permanent damage if misused. With the help of a colorist, only 40 volumes of developer are used.
Is 30 or 40 volume bleach stronger?
40 batch developers are better than 30 batch developers. The larger the number (ie 40 is greater than 30), the stronger the developer.. For example, a 30-volume developer is more powerful than a 20-volume developer. But 40 rolls of developer should be used with the hair dyer, not when you are doing hair at home. Without professional help, it can easily damage the hair and scalp (regardless of the hair type).
Can I brighten my hair with 30 Volume Developer?
Use 9% hydrogen peroxide and 30 volumes of developer to brighten hair color in 2-3 steps. If you don’t want your hair to be lighter than a few shades on the color wheel, this is a good choice.
How much bleach did you mix with 30 developers?
No matter how much developer you use, you should use a 2:1 mixture of developer and bleach in your hair whitener. For example, if you are using 30 rolls of developer, you need to mix it with bleach in a 2:1 ratio. There are two exceptions to this rule. (1) Always follow the instructions on the product packaging; (2) Always follow the instructions when working with hair dyers.
Can I keep the bleach for an hour?
Unless you work with a professional hair dyer, you should not leave bleach on your hair for 60 minutes. Even with a professional, leaving the bleach on the hair for more than 30 minutes can cause serious hair damage.