Hair dyes are deep and light. Why have hair? It can be painted directly. And some don t. For example

Different hair types Different hair types have different degrees of color.

No! I've had this situation before, the staining was uneven, and I wanted to re-stain it, but many people told me that if you re-stain it for a short time, it may not be colored, because your cuticle is so damaged that it doesn't lock the color anymore. And your hair will be like dead grass and you won't be able to get it.

Because of this, I have also checked a lot of information, a person should dye their hair normally twice a year, at most four times, dyeing too often will cause dry hair, not easy to color.

Classification

Hair coloring is divided into plant and chemical properties. The characteristic of the plant is that it does not harm the body, and the disadvantage is that it has a single color. Chemical hair dyes are highly polluting and damaging to the blood system.

Plant-based hair dyeing has gradually been accepted by people, and there are more and more institutions promoting and researching plant-based hair dyeing.

Chemical hair coloring changes the structure of the hair and the process of eroding the scalp, ammonia corrodes and damages the hair follicles. Plant hair coloring is a physical process in which nourishing elements attach to the hair and scalp like a membrane, nourishing and caring for the hair and nourishing the hair follicles. Just like a cut apple that is covered with an oxide film for a while, botanical hair coloring uses a physical oxidation process to attach nourishing ingredients to the hair and scalp.

Anyone who likes to dye their hair knows that when dyeing their hair, if you are not careful, it may cause the color of the top of your head to be light, what is the reason for this? Why is the top of the head light-colored, and how to dye it correctly? Check it out!

1. First of all, it may be the technical problem of the formula and the hairstylist, which is generally called the top burst, and some of them are caused by the insufficient use of the base color in the formula. If the hairstylist sticks to the roots of the hair or does not apply it correctly, this situation is also prone to occur, and the problem can be found from the formula and the experience of the hair colorist.

2. Secondly, it may be a problem of temperature. The absorption speed of hair dye will be affected by the temperature, the higher the absorption, the faster the color, such as the temperature of the top of the head and the end of the hair is different, then the color of the top of the head will be dark and the color of the end of the hair will be light, and then the color will be different, so when dyeing hair, you must avoid the temperature difference on the hair.

3. Finally, there may be a problem of personal hair quality, such as collapsed and soft hair, people with more gray hair, and some thick and thin hair, such hair is more prone to such a situation, but generally this is relatively rare. If this is indeed the type of hair, you need to take a different approach when dyeing your hair.

What to do if you dye your hair and the top of your head is light.

Re-dyeing, generally the color of the top of the head is too bright after dyeing the hair is called bursting, you can choose to re-dye your hair, but not too short from the last hair dyeing time, you can wait two weeks, and then change to a barbershop, find a more reliable barber to dye a favorite key color, the previous hair color to cover or remedy.

There are several reasons why the crown of the head is lighter after dyeing your hair, which may include:

Improper operation by the hair color technician. In a regular hair coloring routine, the dye will be applied quickly or even over-colored, under the influence of slightly higher temperatures, resulting in a lighter color at the root of the head, which is known in the industry as "overhead".

Other factors such as improper use of hair dye, differences in hair quality, and improper temperature control may also cause the color of the top of the head to be lighter.

If you wish to avoid this, you can talk to your hair colorist, Kai Qing, to choose the right color and hair coloring regimen, as well as maintain the right temperature control during the hair coloring process.

Because the temperature of the hair roots on the top of the head is higher than that of the hair shaft and the ends of the hair, the dye paste will be quickly colored under the influence of a slightly higher temperature, or even overcolored, which will cause the color of the hair roots on the top of the head to be lighter.

The formal hair dyeing procedure is to dye the stem and ends of the hair first, reserve two centimeters at the roots, and wait for the hair stems and ends to be colored, and then finally to the hair at the roots of the dyeing.

Girls love to do their hair, and hairstyles are also very important to a person, but have netizens found a problem, that is, the color of the top of the head is light when dyeing hair, why is this? For netizens who don't know, let's follow my footsteps to see why the top of the head is light when dyeing hair.

1. Because the temperature of the hair roots on the top of the head is higher than that of the hair shaft and hair ends.

2. The dye paste will be quickly colored under the influence of slightly higher temperature, or even overcolored, which will lead to the light color of the hair roots on the top of the head, which is called "overhead" in the hairdressing industry.

3. The reason for the overhead is caused by the improper operation of the hair dyeing technician, the formal hair dyeing procedure is to dye the hair stem and hair tips first, reserve two centimeters at the hair roots, and wait for the hair color of the hair stems and hair tips to be completed, and finally to the hair of the hair dyeing roots.

In normal hair coloring, the pigment begins to fade after 30 cleansings, so the dyed hair needs to be re-dyed at this time.

Easy. If it is the first time for customers to dye their hair, they should start from the bottom and go up to the top, and the top of the head is located at the highest top of the human body, so it is necessary to reserve a U-shaped (horseshoe-shaped) from the top to the forehead to distinguish 2 cm from the hair roots, and avoid applying dye paste at the same time (the hair ends can be coated with dye paste first), and after about 10 minutes of dyeing, then apply the 2 cm part of the hair roots at the U-shaped position on the top of the head to apply the dye paste, so that the operation procedure can avoid the color difference between the hair roots and the ends of the hair will not be too large, and it can be flushed in about 10 20 minutes.