What will happen if the wrong ratio of hydrogen peroxide is used when dyeing hair?

Hey~~Another person who dyes his own hair~~~The technical content of hair dyeing is not as simple as you think. It is best to advise you to bring your potion to the hair salon to have it done, and just pay some crafting fees~~

Also, the black circle you mentioned belongs to new hair and cannot be dyed together, because this layer of hair is not damaged, and the dyeing time is of course much longer, so you must first When applying to new hair, be careful not to go up to the scalp first, or not to the 1 cm layer close to the scalp, because this part is close to the scalp, and the scalp has temperature. When it is heated, it will accelerate the penetration of the medicine, which is very difficult to control. If you don’t do it, it will be over the top, and you will spend a lot of money~~ There is also 7.4 dye cream. If you want to color it all at once, it is a joke. Let me explain this to you. A person’s new hair or black hair has not been permed or dyed. , then its degree is 2.0. You can use your toes to figure out the difference between the degrees of 2.0 and 7.4? Isn't that a little bit of a problem? Dyeing it in one go@#@￥oh#￥% is impossible even for the god of hair dyeing~~ First of all, the degree of hydrogen peroxide milk is explained as 6% degree, 9% degree and 12%

6% degree The hydrogen peroxide milk can be dyed with 1 to 2 degrees, 9% can be dyed with 2 to 3 degrees, and the 12% can only be dyed with 4 degrees at most and it depends on how you mix it, so your black hair can be dyed to 7.4 , the difference is more than 5 degrees, is it possible to color it? So here you can only color hair that has been permed and dyed before. Black hair is completely impossible. I guess your hydrogen peroxide milk is still between 6 degrees and 9 degrees. If you want to color black hair, you can only use fading powder to fade it. The golden color is being dyed...

Hey, having said that, I still advise you not to dye it yourself. Find a hair salon to help you apply the potion. Find a medium-sized hair salon and pay a 50 yuan craft fee to do it for you. Well, these are not as simple as you think. Dying flowers by yourself is not beautiful. Does it look good with black and yellow?

Although it is admitted that hair salons are huge profits, people also rely on their craftsmanship to make a living. Please understand, otherwise it will be like you dyeing your own hair and we will all be unemployed #￥@#￥~~woo~~ Woo~~

In addition, because of my enthusiastic answers, I hope you can implement my points more. During this period of time, I almost fell off the list of experts when I went to school~~ Now I don’t seek to be first, I only seek to be the first. Not falling anymore