I'd like to introduce you some basic knowledge and precautions about using hair dyes, hoping to help you minimize the harm of some hair dyes while dyeing your hair and making it beautiful.
What are the precautions before hair dyeing
Hair dyeing has now become the most common beauty method, but common things also need attention. After the above color is completed, do not use hot air to blow for a long time, let alone perm immediately. If you want to know more precautions before hair dyeing, take a closer look.
Most oriental people with yellow skin should not use yellow color when making color, because it will bring people a morbid and unhealthy feeling. Oriental people should generally prefer medium brown and dark brown. This color is suitable for full head dyeing or pick dyeing. The suitable age range is 25-50 years old. Rose red and wine red will create a festive atmosphere. Suitable for full dyeing of short hair and partial pick dyeing of medium and long hair. Avoid full dyeing of medium and long hair. The age range is 20-35 years old. The principle of choosing dyeing is that for people with white skin, the difference between the selected color and skin color can be larger, and for people with dark skin, the difference between the selected color and skin color should be smaller.
The reason why you should not wash your hair three days before dyeing is that the oil secreted from your hair can protect your scalp from infection, and these oil and dust on your hair will not affect the color effect at all. On the contrary, if you wash your hair before dyeing, or even scratch your scalp with your nails, it will easily cause head skin allergy, and even lead to other diseases. The so-called imported high-grade hair dyes will only reduce the damage rate to hair, but the damage still exists. We can see that in the projects of the hair salon, there is local oil care and hair dyeing. In fact, it is simply hair dyeing, and there is no care. Just washed hair, the sweat pores of the head are open, and the surface is not protected. No matter how good the hair dye is, it will inevitably not make the skin allergic.
Comb smoothly with a wide tooth comb before applying color. If the color you need is quite different from the natural color of your hair, bleach your hair in order to take your own color and prepare for the target color. If there is little difference between the color you need and the natural color, you don't need to bleach your hair. The practice of hair dyeing experts has proved that before applying the color, you can evenly apply the dioxygen milk with a concentration of 9% on your hair. After 15 minutes, dry it with electric hot air and comb it with a wide tooth comb while blowing. The purpose is to remove the original hair color and make the target color (the color you want to achieve) bright and lasting, This technology avoids the serious damage of bleaching powder to hair. The validity period of target color and natural color is long, and the hair bleaching agent made of bleaching powder + dioxygen milk should also be used to bleach the hair color.
Then color it. Before coloring, apply a single dye paste (target color) on the hair surface, and then dye it with the prepared target color after 5 minutes. The purpose is to make the target color more bright and bright without fading for a long time. After coloring, do not heat it in the baking oil steam engine, because the steam will reduce the chromaticity of the target color, so it can not fully achieve the target color. The correct method is to heat in the infrared baking lamp for 25 minutes, and gently rub the hair with both hands to make the hair dyed evenly. After cooling for 5 minutes, rinse with warm water. When washing your hair with shampoo after dyeing your hair, remember not to scratch your scalp.
After coloring, do not use hot air to blow for a long time, let alone perm immediately. Because doing so will make the hair lose color. If you need to perm, it should be done 7 days before or 7 days after hair dyeing. In addition, after dyeing your hair, you should not wash your hair in a short time. It is better to wash it after 3 days, and you should not be exposed to the sun. In addition, people with skin allergies are not easy to dye their hair.
What are the common sense of hair dyeing
Nowadays hair dyeing [1] has become a fashion. Young people can change the color of their hair with their mood, cooperate with their clothes and makeup, and fully display their personality; Middle aged people have to dye black frequently because they keep growing white hair. If the frequency of hair dyeing is high, it will certainly damage the hair and even the health of the body. How to reduce the damage of hair dyeing to the body?
Scientists say that 70% - 80% of SOHO's customers will dye their hair. When dyeing hair, many people will ask whether dyeing hair will damage hair or even cause cancer. In fact, hair coloring will definitely affect the health of your hair, just like makeup and nail polish. These are all harmful to human health. But now it is an era of beauty. Healthy hair is not beautiful without hair. What we need to do is to minimize the damage of dyeing to our hair.
Although there are many reports abroad that hair dyeing can cause cancer, an article in the French magazine 60 million consumers said that the properties of many components of hair dyes have not been fully known, and some components may be harmful to health and even cause cancer. Research by the American Cancer Society shows that women who use hair dyes are likely to develop lymphoma. Lai Wei said that although some chemicals in hair dyes are harmful to human body, especially may cause skin allergy and dermatitis, there is no definite evidence that hair dyeing can cause cancer.
Hair dyeing products are generally divided into three types: bleaching and dyeing (that is, general fading), metal dyeing paste and plant dyeing paste. Generally speaking, bleaching and dyeing is harmful to hair, and it is easy to turn yellow and white. It is not recommended to use it under special circumstances. The material of metallic dye paste is extracted from minerals, which is harmful to human body. You may have heard that hair dyeing can cause skin cancer. This dye paste is the culprit. However, you can rest assured that this kind of dye paste is not available in larger stores. Vegetable extracts are the essence extracted from plants. They are relatively mild. They are also the most professional dyeing paste (such as Song Wei, black head, Wella, etc.).
Dyeing a beautiful hair depends on skin color, working environment, personal preferences, etc. Just like carefully selecting the color of paint when decorating a house, hair dyeing is also a very important part of hair beauty. It can change the visual effect of hair, increase the clarity of hair level, make it look soft, bright and refreshing.
Some hair styles will be better if they are dyed with highlights or pieces. Whether it's perm or hair dyeing, you should know when you need to dye and when it's suitable for perm. Don't blindly listen to the sales promotion of some hair salon staff.