Often heard netizens discuss, before dyeing hair must not wash the hair for three days is the best, some people say that after washing the hair and then dye the color is more uniform, some people say that the hair before dyeing the dirtier the better, in the end which statement is more reliable?
The following is from three aspects, for you to answer this long-discussed question, after reading you will no longer be entangled in this kind of problem.
1, hair coloring does not necessarily have to be three days without washing hair, one or two days in advance without washing hair can be colored hair. The purpose of not washing the hair is to isolate the hair dye with the help of grease and horn on the scalp and play a protective role;
2, if you do not wash your hair for a long time, the scalp is too dirty, it will affect the hair coloring effect of the hair root, so there is no need to space too long;
3, direct hair coloring after shampooing is no problem, but the irritation of the scalp will be stronger.
After reading these three points, you will know that washing your hair before dyeing does not affect the effect of hair coloring, but some people may have an itchy scalp in the hair coloring.
Expand your knowledge
In order to let everyone know more and more detailed knowledge of hair coloring, the following is the topic of washing hair for three days before hair dyeing, to add some professional knowledge to everyone, hoping to solve everyone's puzzles.
Do I have to not wash my hair for three days before dyeing my hair?
In fact, there is no need not to wash your hair for three days, as long as you do not wash your hair for one or two days, the purpose of this is to use the grease on the scalp and the detached stratum corneum to play a role in isolating hair dye.
Because the main component of hair dye is ammonia, ammonia has a certain irritation and may cause itching sensation in hair coloring. In particular, the hydrogen peroxide milk matched by the hair dye will also cause a strong itching sensation during the hair coloring process.
If you do not wash your hair before hair coloring, the oil and keratin on your head will play a role in blocking the hair dye and reducing the irritation of hair dye and hydrogen peroxide on the skin.
Therefore, there is a certain scientific reason for not washing your hair before dyeing your hair, but it is not the most correct and professional practice.
Can I dye my hair directly after shampooing?
If the scalp is too greasy, or if the hair is not washed for a long time, it may affect the coloring effect of the hair roots. It is best to wash your hair before dyeing it. However, do not scratch the scalp hard when shampooing, once the scalp is scratched, the irritation will be very strong when dyeing the hair.
The water temperature should not be too high when shampooing, too high water will make the skin swell, and it will also aggravate the irritation when dyeing hair. The right thing to do is to choose a washed hair at a lower temperature, which can reduce the irritation of the scalp when coloring hair.
The vast majority of people dye their hair after shampooing, and the scalp will not be irritated. Only a small number of people with sensitive skin, or if there are traumas on the scalp, will produce an itchy feeling.
If you are worried about the hair dye irritating the scalp, you can apply a special coloring cream to the scalp before hair coloring, which can play a role in isolating the hair dye and reduce the irritation of the hair color on the scalp.
There is no barrier cream, you can replace it with a skin cream, the effect will be worse, but it can also play a little isolation role. But do not apply too thickly, so as not to affect the coloring effect of the hair roots, especially people with white hair, must pay attention.
epilogue:
If you dye your hair at home, don't wash your hair a day or two in advance, you don't have to wait for three days. If you go to a barbershop to dye your hair, it is best to wash your hair according to the requirements of the barber. If there is trauma to the scalp, be sure to wait for the wound to fully recover before dyeing the hair, so as not to cause wound infection, but also to minimize the irritation to the skin.
This article is original by Cheng Ming Chat Fashion, only represents the personal views, the pictures are from the network, if there is infringement please contact to delete. I hope that my professional interpretation and unique insights can help you, and more topics can continue to communicate or complain in the comment area below.