Whether dyeing hair is harmful to the body or not, dyeing hair can make people look more fashionable and younger, so if they want beauty, people will choose various colors to make themselves look more elegant. Let's see if dyeing our hair is harmful to our health.
Is dyeing your hair harmful to your health? 1 Hair dyeing is harmful to health. It is not recommended to dye your hair too often. It is advisable to dye your hair 1~2 times a year. Hair dyeing has the following hazards to the body: First, it may cause scalp allergy and little red dot, and in severe cases it may cause folliculitis.
Second, harmful substances in hair dyes can cause cancer, because most hair dyes are chemical components, which have a strong stimulating effect on hair. Regular use will lead to dull hair, lack of nutrition, hair loss and dandruff increase after a long time.
Third, heavy metals in hair dyes exceed the standard. If the hair dye penetrates into the skin and enters the blood, the body will absorb harmful substances. Long-term use will damage liver and kidney function and cause leukemia, various cancers and other diseases.
Hair dyes are often used in life to dye hair, which is harmful to human body. Hair dye is a chemical reagent, and the harm of hair dye to human body is common in the following aspects:
1, contact dermatitis: Hair dyeing can cause scalp to be allergic to hair dye, forming contact dermatitis, which is often diagnosed as hair dye dermatitis in clinic. With the further development of hair dye dermatitis, skin damage can be manifested as erythema, edema, erosion, exudation and even blisters on the scalp.
2. Autoimmune dermatitis: the further development of contact dermatitis can spread to the whole body, leading to systemic autoimmune dermatitis, which in turn leads to erythema, blisters, erosion and exudation of the whole body skin. The patient feels itchy, and the secondary infection at the erosion site can also lead to infectious inflammation;
3, hair loss: hair dye can lead to hair loss, often some patients often dye hair, perm, baking oil and lead to hair loss;
4. Carcinogenesis: Some patients dye their hair with hair dye for a long time. P-phenylenediamine in hair dye is a carcinogen. Long-term use of hair dye can also lead to chronic damage to the head skin, and long-term external use may cause cancer.
Is dyeing your hair harmful to your health? 2 1, causing disease?
Because there are some chemical components in hair dye, it will affect hematopoietic stem cells and it is a carcinogen. I hope everyone will pay more attention.
2, causing skin allergies
Dyeing hair can also cause allergies, which is very common. Generally, this allergic reaction is not obvious at the initial stage of hair dyeing, but it will become more serious after several times.
3. Poisoning
If the hair dye is used for a long time, as long as 1% is absorbed by the skin and enters the human body, it will accumulate poisoning, in which chemicals combine with some cells, DNA in the nucleus is damaged, causing cell mutation and inducing skin cancer, bladder cancer and leukemia. So scientists warned of the outbreak of this disease.
4. Symptoms of lead poisoning
Hair dye also contains lead acetate, and its lead content is 5 ~ 10 times that of household paints and pigments. After lead enters the human body, it is difficult to excrete it, causing cumulative poisoning, such as dizziness, headache, fatigue, numbness of limbs, leg cramps, abdominal pain and a series of lead poisoning symptoms, and entering the liver, kidney and brain marrow, destroying the functions of these organs, and seriously losing labor.
5. Hair damage
The dyeing process will affect the water imbalance in hair, resulting in a large number of protein degeneration reduction. Causes the hair to become brittle, the fiber breaks, and makes the hair lose its natural beauty of softness, tenacity and luster.
6. Hair loss
Acute and chronic stimulation of hair dye will cause inflammatory reaction of scalp and hair follicle, which will cause hair follicle atrophy for a long time, lead to hair thinning from coarse to fine, and finally cause hair loss. In life, you must dye your hair carefully. If you really want to dye your hair, you'd better use some good hair dyeing products. I hope you can pay attention.
Is dyeing your hair harmful to your health? Do you want to wash your hair before dyeing it?
Many people think that it is easier to dye your hair after shampooing, but this is not the right way. This is because if you wash your hair before dyeing, it will make your hair smooth and clean, which is not a good thing for dyeing, because such hair will make your hair out of control and it is difficult to dye, so the effect of dyeing is not as good as expected.
Before dyeing hair, the skin oil will also be washed off, which means that the hair dye will be in close contact with the scalp without obstacles, which will be more irritating to the scalp. Therefore, it is recommended not to wash your hair the day before dyeing, so that the oil produced by the scalp will protect the scalp and reduce the allergic and stinging reaction of the scalp to the hair dye cream and hair dye.
In fact, before dyeing hair, professional hair salons will help people isolate their scalp, which can prevent many hair dyes from invading the scalp and causing harm to health. So if people don't wash their hair before dyeing their hair, they will have double insurance when dyeing their hair.
However, if you use styling products before dyeing your hair, you can wash your hair properly before dyeing your hair, but it is best not to wash your scalp or wash off scalp grease.
Care for your hair before dyeing it.
It is necessary to care for the scalp before dyeing hair, which can minimize the damage of hair dye to the scalp. Scalp care before dyeing hair should start two weeks ago. You can go to the supermarket and start with hair mask, hair oil and conditioner. I suggest you use deep conditioner instead of ordinary conditioner, which will make your hair stronger.
In fact, hair care before dyeing can not only strengthen hair, but also make hair absorb color better. Use hair care mask and hair care oil two weeks before dyeing. These two products can deeply nourish your hair. Among them, hair care oil is equivalent to essence milk, and hair care film is equivalent to cream. Both of them can achieve the effect of 1+ 1 "2.
How to dye your hair healthily
Nowadays, more and more people like to dye their hair. So, how can we balance beauty and health?
1, scalp to shoulder and neck, apply vaseline.
Professional hairdressers will apply professional isolation liquid on the scalp of guests before dyeing their hair to protect the scalp. If you dye your hair at home, you can apply a layer of vaseline to the scalp and shoulder and neck skin, which can also achieve the effect of isolation.
2. Before dyeing your hair, do an allergy test.
Apply a small amount of hair dye behind the ear or inside the elbow and stick it with breathable tape for 24-48 hours. If the skin is red, swollen and burning during the test, you are allergic to this hair dye and should avoid using it. If there is no response, it means safety.
3. It is best not to wash your hair before dyeing 1 day.
This can preserve the grease on the scalp and protect the scalp.
4. Avoid washing your hair.
In the process of dyeing hair, never "wash your hair" in order to avoid getting a lot of hair dye on your scalp.
5. If allergic reaction occurs, seek medical attention immediately.
Pay attention to the scalp condition at any time after dyeing hair. If allergic reactions such as itching and swelling occur, you should seek medical attention immediately. If you don't pay attention, it is easy to cause hair follicle necrosis.
6. The interval between dyeing hair is at least 3 months.
In order to avoid excessive stimulation and damage to scalp and hair follicles, the interval between dyeing hair must be more than 3 months. Frequent dyeing of hair is easy to destroy the quality of hair and make the dyeing effect worse and worse.
7, good hair quality, long-lasting hair color.
The best way to make hair color last is to avoid damage to hair quality. For example, using hair care products, washing your hair with water that is not too hot or a hair dryer that is not too hot, or through a balanced diet and adequate sleep from the inside out, you can keep your hair healthy, smooth and shiny, thus ensuring that the hair dye is fully retained and not easy to fade.
8, hair roots, it is best to find a professional.
The average length of human hair is 1-2 cm a month, so the hair roots need to be dyed frequently. Because the hair roots are close to the scalp, it is recommended that professional hairdressers try their best to deal with hair dyeing.