Introduction: In today's society, appearance and appearance image has become the focus of people's attention, with the change of social aesthetic concepts, people are more tolerant of people with superior appearance and figure, which also prompts more and more people to pay attention to their external image.
In order to pursue perfection, many people choose to enhance their charm through medical aesthetic means, and hair dyeing, perming, makeup, dressing, etc. have also become a fashion trend.
However, hair dyeing has sparked widespread controversy in real life, with some people believing that regular hair dyeing may cause cancer because hair dye cream contains chemicals that are absorbed by the scalp during the hair dyeing process and are accompanied by a pungent odor, and the effects of these substances on human health raise concerns and increase the risk of cancer.
Despite this, there are still many people who are optimistic about hair coloring, believing that moderate hair coloring will not have much of an impact on their health, and that a beautiful appearance can increase confidence and well-being. So if you dye your hair regularly, will it cause cancer? Today, I will tell you the results through research, and I recommend that you tell your relatives and friends in time after reading it.
Pigments:Responsible for dyeing the hair in a specific color.
Alkaline agent:It plays a key role in the hair coloring process, helping to open up the hair cuticle so that the dye can penetrate the inside of the hair. Hair dyes used in barbershops usually contain volatile alkaline agents, while commercially available hair dyes use non-volatile alkaline agents.
Hydrogen peroxide:It is an active ingredient to fix the color after hair dyeing, but it is also a strong allergen, which may cause people with sensitive constitution to have ** allergies, and even have an impact on hematopoietic stem cells, which is considered one of the carcinogens. Long-term and high-frequency use of hair dyes containing hydrogen peroxide may increase the risk of bladder cancer.
Conditioning Ingredients:Regulates the performance and stability of hair dyes.
In addition, hair dye may also contain some other ingredients, such as heavy metals such as p-phenylenediamine, lead, mercury, arsenic, etc., p-phenylenediamine is an active ingredient that fixes color after hair dyeing, but it is also a strong allergen.
About two-thirds of hair dyes on the market contain p-phenylenediamine, but France, Sweden and other countries have banned the addition of p-phenylenediamine to hair dyes, and the heavy metal components in hair dye may damage organs such as liver and kidney after entering the human body.
Temporary hair dye
These hair dyes are generally composed of macromolecular dyes or pigments, which cannot enter the inside of the hair due to their large molecular weight, and mainly adhere to the surface of the hair.
As a result, they are relatively easy to wash off with shampoo and water, and temporary hair dyes rarely damage the hair and are not easily penetrated**, making them safer.
Semi-permanent hair dye
The main ingredients of this type of hair dye are some dyes with low relative molecular quality that can penetrate into the hair strands, and they have a certain affinity with the hair cuticle, but these small molecules will seep out when shampooing, and semi-permanent hair dyes can generally tolerate 12 washes.
Permanent hair dye
This type of hair dye is mainly oxidized hair dye, and its hair coloring principle is not to use dyes directly, but to use colorless dye intermediates.
These dye intermediates have a small molecular weight and can penetrate into the hair strands, and oxidize and polymerize with oxidants and coupling agents that also penetrate into the hair strands to become macromolecular dyes that color the hair.
Because these macromolecular dyes are formed inside the hair, it is difficult to seep out of the hair, and the color lasts for a long time, and the commonly used dye intermediates are p-phenylenediamine and aminophenols.
[Research Report 1].
The Institute of Blai University and Environmental Health Institute in the United States has conducted an in-depth exploration of whether hair dyes cause cancer, which is a scientific study of great significance.
To reach accurate conclusions, they carefully selected 700 female volunteers for a five-year follow-up study, who were divided into two groups: one who dyed their hair frequently and the other who did not dye their hair.
During this five-year period, experts conducted meticulous observations and data analysis of these women, and they found a shocking fact: women who regularly dye their hair have a significantly increased risk of breast and ovarian cancer, with a probability of up to 345%。
In contrast, those women who don't dye their hair regularly have only a 2% to 5% chance of developing these two cancers1%, this finding has attracted a lot of attention and discussion, and it also raises questions about the safety of hair dyes.
[Research Report 2].
Brigham and Women's Hospital at Harvard Medical School, in partnership with the Cancer Institute and other authorities, has launched a major project to dig deeper into the data of the best health research in the United States, and in this unprecedented study, a total of 1170,000 women between the ages of 30 and 55 participated.
After careful exclusion of other variables such as height, weight, and ethnicity, the findings revealed a remarkable phenomenon: women who had used permanent hair dye did not have a significantly increased risk of most cancers compared to women who had never used permanent hair dye.
However, this does not mean that hair dyeing is harmless, and it is important to note that hair dyeing is indeed associated with an increased risk of developing a range of serious diseases, and frequent hair dyeing can lead to the accumulation of toxins in the body, and these harmful chemicals, once bound to the body's cells, can cause damage to the DNA inside the cells.
In the long run, it may not only cause malignant diseases such as ** cancer and leukemia, but also cause serious damage to multiple systems of the body.
Therefore, for the sake of our health, we should be cautious about the behavior of hair dyeing, it is recommended that everyone reasonably plan the frequency of hair dyeing, try to avoid frequent hair dyeing, only when we are fully aware of the potential health risks, can we truly cherish health and stay away from diseases.
Carcinogenic risk
Some chemicals commonly contained in hair dyes, such as aniline and p-phenylenediamine, may pose a potential carcinogenic risk to the human body, and these substances may enter the hair and scalp during the hair dyeing process, and long-term accumulation may increase the risk of cancer, such as bladder cancer.
Allergies
The chemical ingredients in hair dye may cause **allergic reactions, such as itching, redness, swelling, rash, etc., p-phenylenediamine is a common allergen, and for people with sensitive constitutions, severe allergic reactions may occur after dyeing hair.
Liver and kidney damage
Some heavy metal components in hair dyes, such as lead, mercury, arsenic, etc., may cause damage to human organs such as liver and kidneys, and these heavy metals may enter the human body during the hair dyeing process, and long-term accumulation may have adverse effects on health.
Hair quality decreases
Frequent hair coloring can lead to a loss of hair quality, making hair dry, brittle, prone to breakage and split ends, and the chemical ingredients in hair dye can damage the hair's natural protective layer.
Don't wash your hair for three days before dyeing your hair:This retains the oil on the scalp and protects the scalp from overstimulation and damage from hair dye.
Use high-quality hair dye:Try to choose hair dyes that are mainly based on plant ingredients, and avoid hair dyes that contain harmful substances such as p-phenylenediamine.
The frequency of hair dyeing should not be too high:It is best to dye your hair once or twice a year to avoid excessive damage to your hair and scalp caused by frequent hair coloring.
Do an allergy test:Before using hair dyes, it is best to take an allergy test to avoid the health risks that come with allergic reactions.
Maintain a good diet
We should consume more foods rich in protein, iron, calcium and vitamins, such as fish, lean meat, eggs, dairy products, beans, sesame seeds, kelp, etc.
In addition, hair also needs adequate nutrition, and we should avoid excessive dieting and malnutrition so as not to affect the health of the hair.
The right way to shampoo and care for your hair
We should choose a shampoo and conditioner that is suitable for our hair type and follow the correct way to use it.
When shampooing, wash your hair with lukewarm water, avoid washing your hair with overheated water to avoid irritating your scalp and damaging your hair, and try to avoid using too many chemicals when taking care of your hair to avoid causing damage to your hair.
Trim the ends of your hair regularly
Trimming ends removes split ends and dry ends, promoting hair growth and metabolism. At the same time, regular trimming of the ends can also make the hair healthier and shinier.
Nuts
Nuts are rich in protein, vitamin E, and minerals, all of which play an important role in hair health. For example, walnuts can promote keratin production in the hair, which is good for hair growth and shiny, and almonds, cashews, etc. are also good choices.
Beetroot
Beetroot and other nutrients are rich in vitamin C, iron, copper, and other nutrients, all of which help keep hair healthy. At the same time, the dietary fiber in beetroot can also help regulate gastrointestinal function and indirectly promote hair growth.
Fish
Fish, especially deep-sea fish rich in omega-3 fatty acids, such as salmon and trout, are extremely beneficial to hair health, and omega-3 fatty acids can promote the production of oil in the hair, making the hair more moisturized and shiny.
Legumes
Legumes such as black beans and red beans are rich in protein, minerals and vitamins, especially iron, which is essential for hair health. At the same time, the isoflavones in legumes are also beneficial for the health of hair follicles.
Eggs
Eggs are important for high-quality protein**, but they also contain minerals such as selenium and magnesium, which contribute to hair health and enhance hair resilience and elasticity.