with the progress of society, our sense of beauty is also evolving. A person’s beauty is not only reflected in his face and body, but also cares about some small details, such as the color matching of clothes and trousers, nail enhancement and hair dyeing, It is what many women like to do, especially in dyeing their hair. Compared with dark hair, there are many girls now. In order to pursue beauty and beauty, they often choose to dye their own beautiful hair color to add their own female charm. But in hair dyeing, many people say that hair dyeing will cause cancer and hurt the body. Is this true? Let’s talk about it in detail today.
Let’s find out what the white hair dye is first?
hair dyeing Gu Ming thinks that in fact, we use some special items to change our original hair color. Generally speaking, there are two kinds of hair dyeing on the market, one is permanent hair dyeing, and the other is semi permanent and short-term hair dyeing. Semi permanent and temporary hair dyeing can achieve the effect of hair dyeing by covering the hair color through some plants or some colored minerals. However, the molecules of these dyes cannot penetrate the surface of the hair and go deep into the interior. They often gradually return to normal after repeated cleaning.
for persistent hair dyeing, the molecules of dyes are actually very small. After entering our hair, they will be oxidized by oxidants to generate large color molecules. Not only the color is obvious, but it is difficult to wash off after multiple cleaning. It can really change the color of your hair. It is also the most frequently used hair dyeing method, because most of them are chemically synthesized hair dyes, Many people take it for granted that it causes cancer and affects their health.
can hair dyeing cause cancer? What impact will it have on the body?
in fact, the answer to this question is very clear. It is indeed carcinogenic. Most chemical hair dyes contain sleeping and p-phenylenediamine, which are internationally recognized strong carcinogens. Experiments have been conducted abroad. It is clear that there are cancer samples in animals, but for human body, it will lead to allergy and pigment precipitation, We can see a lot of reports about cancer caused by long-term hair dyeing. The vast majority of them actually happen in our
. It is really necessary to follow the doctor’s advice.
hair dyeing itself will have a certain impact on our health. Therefore, it is better to keep the original hair color if it is not necessary, But if you really want to dye, it is suggested that you should pay more attention to the following situations before you can dye your hair at ease.
first of all, when there are wounds on the scalp, you must not dye your hair. The second is to pay attention to the components of hair dyes, such as p-phenylenediamine, before dyeing your hair. If you have allergic problems, don’t choose hair dyes containing such substances. Then, 1-2 days before hair dyeing, it is best to apply some hair dye on the elbow to observe whether you have obvious allergic reaction. Then, don’t mix different types of hair dyes, and don’t prolong the hair dyeing time without authorization. After the hair dyeing, be sure to wash it many times to avoid excessive hair dye residue. Finally, it’s best not to dye your hair more than twice a year.
the saying that hair dyeing will cause cancer actually exists. If you are worried about this problem, or don’t want to affect your health, you might as well follow the doctor’s advice. When there are no problems after all, you can safely dye your hair. I hope you can pay more attention to it.
hair dyeing harm
secondary amine is easy to react with epoxy, aldehyde and acid gas. It can be used as dye fixing agent to stabilize the attachment effect of dyes. It can penetrate into the skin and hair, stay for weeks, months or even years, and react with tobacco smoke or waste gas in the air to form a strong carcinogenic chemical nitrosamine.
hair coloring agents have been linked to a series of cancers, including breast cancer, bladder cancer, uterine cancer, brain cancer, leukemia and so on. As early as 2009, a woman in Britain was at risk of blood cancer because she used hair dye more than 9 times a year; A year later, the European Commission banned 22 hair coloring products that could cause bladder cancer.
hair dye also contains heavy metal salts. Once they enter the human body, they are difficult to be discharged from the body. If they accumulate in the body for a long time, they will cause poisoning, make people have poisoning symptoms such as dizziness, headache, fatigue and numbness of limbs, and may enter the liver, kidney and brain to destroy the functions of these organs.
experts suggest that you’d better not dye your hair. If you must dye your hair, the interval between two hair dyes should be at least 3 months, and it is best to dye it in a professional barber shop. Don’t bake oil a week before hair dyeing. Don’t wash your hair on the day of hair dyeing. The oil secreted by the scalp has a protective effect; If the scalp has wounds and ulcers, it is not suitable to dye hair; Skin sensitivity test should be done 48 hours before hair dyeing; Hair coloring or vaseline should be applied to hair and ears before dyeing. To prevent hair coloring from damaging the skin, if there is a slight adverse reaction on hair, it should be stopped immediately.
if you stay in the smoke environment for a long time after hair dyeing, you should wash your hair frequently and remove the harmful substances adsorbed on the hair in time. It is best to wear a hat when traveling in haze days and take off your coat immediately after entering the house to reduce the harm of outdoor dirty air to your body.
Reduce harm
dye your hair no more than twice a year
the hair dyeing part should be at least 1-2 cm away from the scalp
wash your hair thoroughly after dyeing, Wash off all hair dye substances
do not scratch the scalp after hair dyeing. It is easy to infect
precautions
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. It is also suitable for full dyeing of short hair and local 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.
do not wash your hair before dyeing. The oil secreted from your hair can protect your scalp from infection, and the 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. This step is very professional and needs your hairdresser to deal with it for you.
and then coloring. 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, so as 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 the color is finished, 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.
if your hair is healthy, with moderate hair volume and black and bright color, it is the best. As long as you have superior creation in modeling (referring to hair cutting), it will be icing on the cake. The black hair floats and has a special charm. And the beauty of Oriental women has been strongly reflected in their hair.
Beauty loving you like to change your hair color, but be careful not to go into the misunderstanding of hair dyeing.
hair dyeing process is actually the oxidation process of hair dye and hair, which is different from general color baking oil. Through physical methods, beat the hair epidermis with heat to make the pigment factor penetrate into the epidermis, so as to cover the hair surface. Therefore, the pigment factor will be gradually reduced with shampoo to reproduce the natural hair color. Dyeing is through chemical reaction and completely change the natural color of hair to achieve a permanent effect. Then there are more than 4000 colors according to the differences of hue, hue and chroma. Each color has its unique connotation, which will change everyone’s original temperament and image.
difficult hair dyeing don’t dye your own hair
if you want to dye a hair color that is very different from that before, you must not do it at home without authorization. Instead, you should first ask the hairdresser you often cooperate with, listen to their professional opinions, see if you really fit this color, and then go home and think about it carefully before dyeing.
excessive color before dyeing
at the beginning of dyeing, you can have a transition color first, or change from the dark color of the same color system to the light color of the same color system, but you can ask the hairstylist to help you add some highlights, especially brighten the angel halo on your head, which will make the effect more obvious.
make a hair film before dyeing
about a month before you intend to dye your hair, start to make a deep care hair film once a week to increase toughness and nutrition for your hair, and healthy hair can be better colored.
dyed for many times
the newly dyed hair is very fragile. When blowing, use low-grade hot air to dry it, because the overheated temperature will cause rapid loss of pigment, or you can also use some post dyeing color protection hair emulsion, apply it to the wet hair, and then blow dry the hair.
use ammonia free hair dye
if there is an important party or conference, do not dye your hair before this, otherwise the new color may make yourself and your colleagues feel uncomfortable.
no hair dyeing before important activities 22