What harm does a perm do to the body? How to reduce the harm of perm to the body

Nowadays, girls have never stopped pursuing beauty. After all, now that technology is developed, there are more and more new tricks in beauty salons. How could they miss it? However, for example, there are always some chemicals used in perm, which will always have some effects on the body. So, what are the hazards of perm to the body? How to reduce the harm of perm to the body?

1, reduce the damage of perm.

"Most of my classmates and friends have dyed or permed their hair. I had a perm twice this year. It's not the Spring Festival soon. I'm going to dye my hair and change my image to meet my relatives and friends. " Miss Liu, 23, said. However, she said she was also worried about whether frequent perming and dyeing would do any harm. What worries her most is that I have read the report that "perming hair may cause cancer". I wonder if it's true. Can I do a dyeing project that can make my image look better and better in the future?

Insufficient evidence of carcinogenicity of hair dye products

In view of the concern about the safety of hair dyeing products, the head of the relevant department of the Ministry of Health once said that hair dyeing products may have a sensitive effect, but the causal relationship between hair dyeing and carcinogenesis cannot be confirmed.

"At present, there is no evidence that hair dyeing can cause cancer, so you don't have to worry too much." Yang, deputy director of the dermatology department of Peking University First Hospital, said, "There are different types of hair dyes, including temporary, semi-permanent and permanent, and permanent hair dyes are commonly used in daily life. Relatively speaking, everyone pays more attention to permanent hair dyeing because it uses azo dyes, which are mutagenic, that is, carcinogenic. " But she also said that just because a substance causes cancer does not mean that it is necessarily harmful to the human body.

According to Yang, any substance may be harmful to the human body, but from the perspective of toxicology, to judge whether a substance has harmful effects on the human body, the first thing is to look at the toxicity of the substance, the second is to look at the way it enters the human body, and the third is to look at the total amount it enters the human body. Azo dyes are harmful when they enter the body in large quantities, but as a hair dye, the concentration of dyes is generally within a safe range. During the hair dyeing process, the hair is mainly dyed and the contact area with the skin is very small. In addition, the skin itself has a barrier function and will not absorb too much dye. Therefore, the correct use of qualified hair dyes is still safe for the human body.

If you are worried about allergies, you can have a skin test.

"If you do your hair happily in the New Year, you will spend a sum of money in exchange for skin diseases. This has to be said to be a very disappointing thing. " So is there a risk of allergic diseases caused by perm dyeing? According to the author's experience and visiting many hair salons, it is found that most hair salons do not ask customers if they are allergic before perming and dyeing their hair, and many people have not done relevant tests.

"Allergic or allergic people, it is best to go to a big hospital to do a patch test with perming and dyeing products to test whether they are allergic to their own substances. The universal standard patch test kit also contains toluene diamine and other substances. If the test shows positive, then you should be more careful when perming and dyeing your hair. " Li Hang, an associate professor of dermatology at the First Hospital of Peking University, said.

According to Li Hang, the common pathogenic effects of dyeing products on skin include irritating contact dermatitis and allergic contact dermatitis, among which allergic contact dermatitis is relatively more common. Hair dye contains a main component "toluene diamine", and the proportion of people who are allergic to it is relatively high. "Hair dye dermatitis is a common disease. Common symptoms are local scalp redness, itching, swelling, sometimes bleeding, or papular rash. "

In this regard, Yang said that whether there are allergic symptoms is related to personal physique, and any substance may cause allergies, but relatively speaking, toluene diamine and other substances are highly allergenic, and more people will be allergic to them.

It is not advisable to dye your hair too often.

Yang believes that the most important thing is to find a qualified hairdresser to operate correctly, whether it is perm or hair dyeing. Because the main effect of perm dyeing on human body is the damage to hair shaft, and one of the reasons is incorrect operation. For example, a perm is to break the original protein structure of hair with a reducing agent, and then design a hairstyle, and form a chemical bond in its new position with an oxidizing agent to change its shape. In the process of structural fracture and reconstruction, the damage to the hair shaft is relatively large, and if it is not handled properly, it will bring even greater damage. Specifically, the hair is rough, difficult to comb and dull. Similarly, if the hair is dyed improperly, it will also cause obvious damage to the hair shaft.

Yang suggested that in order to avoid damage to the hair shaft, the materials used first must be qualified and need qualified professionals to operate, because if the proportion used is improper, or the temperature and time during processing are inappropriate, the damage to the hair shaft will be aggravated.

"Ordinary people must pay attention to strictly following the instructions when perm and dye their hair at home." Yang said, "as far as the damage to hair quality is concerned, it is best to have at least three months between dyeing and perming." In addition, don't perm or dye your hair too often. "

Buy regular brands and change less.

With the growing prosperity of the hairdressing market, many hairdressing and hair care products have started advertising wars, and various propaganda words such as "plant essence" and "Chinese medicine ingredients" are dazzling. In order to attract customers, hairdressing salons have also begun to emphasize the "internationality" and "high quality" of their products and technologies.

"From a professional point of view, the formulation of words such as' plant essence' is inappropriate." Li Hang said, "Some fake perm and dye products claim that they have added so-called' Chinese medicine ingredients'. In fact, they may contain some heavy metals, such as lead, arsenic and mercury. A large amount of essence can also be added, which may contain aromatic amines and polycyclic aromatic hydrocarbons. The above substances are theoretically carcinogenic. "

He suggested that when you buy your own hair and dye products, you must go to a regular store to buy a regular brand, and once you are sure that you are not allergic to a certain brand of products, it is best to use a fixed brand of products, and it is not recommended to change them casually. Use perming and dyeing products moderately, because even if you are not allergic now, you can't rule out the risk of allergies in the future.

2. How to care after perm?

1, strengthen nourishing care

Hair tends to become dry and dull after perming, not only because of lack of water, but also because of lack of nutrition. Therefore, you should not only use conditioner every time you wash your hair, but also deeply nourish your hair once a week, which can enhance the luster of your hair. It should be noted that after shampooing, the conditioner should be applied from the hair root to the hair end, and applied repeatedly for three times until the essence is completely absorbed. Sticking to it for about 30 days can effectively relieve the dry state of hair after perm and become natural and shiny.

Step 2 Use moisturizing styling products

In order to maintain the styling effect, wipe off the water with a dry towel after washing your hair, and then use moisturizing styling products. Wet the water before using moisturizing products every morning. Try not to comb with a comb, but gently scratch your hair with your fingers.

3, do a good job of intensive care

But the most important thing is intensive care. If Doris is used for hair care, its molecular weight is even smaller than that of Navi, and it can enter the center of hair core, which has an unparalleled effect on repairing and moisturizing damaged hair. At the same time, it can also be matched with Doris plant local oil patented shampoo, which can achieve twice the result with half the effort!

4. Wash your hair with low-temperature water.

Many people know that they should choose some special shampoos and conditioners suitable for their hair after perming, but they don't know that the appropriate water temperature is also very important. The higher the temperature of the shampoo, the better. Washing your hair with low-temperature water is beneficial to the closure of hair scales. So I suggest you pay attention to the water temperature of shampoo from now on. When you start to wash your hair, the temperature should be controlled slightly higher than your body temperature, and the water temperature for the last shampoo should be controlled slightly lower than your body temperature.

5. Eat more vegetables and fruits rich in vitamins.

We know that if the body lacks vitamins, it will lead to dull hair, especially after perm. For example, vitamin B can promote hair growth and make hair appear natural luster, while vitamin C can activate microvascular wall and make hair absorb nutrients in blood smoothly. Therefore, we usually eat more vegetables and fruits rich in vitamins, including green vegetables and yellow fruits, especially those rich in the above elements, such as celery, spinach, mango, banana and leek. They not only have a good effect on restoring the health and luster of scalded hair, but also can beautify and protect skin.

6. Eat more beans.

After perming, you should often eat bean products such as tofu, which can not only increase the luster and elasticity of your hair, but also prevent your hair from splitting and breaking, especially for women in their thirties. Eating more soy products and drinking more soy milk can also promote the metabolism of brain nerve cells and prevent premature generation of white hair.

7. Eat more seaweed food.

The condition of hair is also closely related to the secretion of thyroxine in the body. However, once a woman is over 30 years old, the ability of thyroid hormone secretion in the body will decline. Seaweed food is rich in iodine and is the main raw material for the synthesis of thyroxine in the body. Therefore, eating more seaweed food can promote growth, moisturizing and blackening, especially after perm, consciously eat more seaweed food.

It can be seen that after perm, we should not only work hard on shampoo and massage, but also take good care of our hair, absorb more nutrients in our diet and promote the health of our hair. If female friends don't know how to care after perm, they must know these common sense in detail and take care of their hair carefully to make themselves look healthier and more beautiful.