Hair dyeing has become a fashion trend. Young men and women and middle-aged and elderly people dye their hair. Young people dye their hair in order to be more fashionable, match clothes and makeup, and fully show their personality.
Middle-aged and elderly people dye their hair to cover their white hair and make themselves look younger. In short, everyone is fashionable for their own beauty!
But there have been all kinds of "rumors" about hair dyeing: Will hair dyeing cause cancer? It will also aggravate hair loss? .. Are these "rumors" facts or rumors?
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Often "dyeing hair" can cause cancer, is it true or not? The research results are published, and it is recommended to understand.
May cause cancer
Researchers at Yale University in the United States investigated women who started dyeing their hair before 1980 and found that some women suffered from lymphoma.
In addition, the University of Brighton and the Institute of Environmental Health in the United States have also conducted in-depth research on these problems caused by hair dyes. Before the experiment, experts selected more than 700 female volunteers to follow them for many years and divided them into two groups:
One group often dyes their hair, while the other group doesn't. The results showed that the probability of breast cancer and ovarian cancer increased by 34.5% in women who dyed their hair regularly, while the probability of breast cancer and ovarian cancer in women who did not dye their hair was only about 2%~5. 1%.
Hair dye increases the risk of cancer, because it contains a lot of chemical factors and additives, especially when mixed with hair dyes, it will react chemically and may produce a pungent smell. Although it is a colorless and odorless fat-soluble substance, its toxicity is 130 times that of cyanide and 900 times that of arsenic. The International Center for Research on Cancer lists it as a first-class carcinogen.
In the process of hair dyeing, dioxins can enter the body through the respiratory tract. Frequent hair dyeing will lead to the accumulation of dioxins in the body, interfere with human endocrine, affect DNA cells, lead to genetic variation and abnormality, and induce cancer.
To sum up: it is true that hair dyeing can cause cancer, so we must control the number of hair dyeing and don't lose our healthy body for beauty.
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What are the hazards of dyeing hair?
cutaneous allergy
P-phenylenediamine is the main component of hair dye, but it is a strong allergen. People with allergic skin are prone to allergic reactions after contact, especially contact dermatitis.
Aggravate alopecia
Benzene compounds such as p-phenylenediamine in hair dyes will undergo peroxide reaction in the process of penetrating the scalp, leading to hair dryness, breakage and even hair loss.
In addition, frequent hair dyeing will cause damage to scalp and hair follicle tissue, which will lead to abnormal hair follicle metabolism and aggravate hair loss.
Damage the liver
In order to enhance the dyeing effect of products more effectively, some businesses in the market will add heavy metal components such as lead and mercury. Heavy metal components in some products seriously exceed the standard. Long-term use will cause chronic harm to the body, easily lead to heavy metal poisoning, and also damage the normal metabolic function of organs such as liver and kidney, and induce liver and kidney diseases.
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Who is not suitable for dyeing hair?
Allergic to hair dye
The main component of dye paste is p-phenylenediamine, which is easy to cause skin sensitivity. People who are allergic must have an allergy test before dyeing their hair!
Outdoor worker
Traffic police, sanitation workers and other outdoor workers, their hair is exposed to the sun for a long time, and it is easy to dry up and be damaged. This kind of person will do great harm to his hair by dyeing it.
Born with poor hair quality
People with dry hair, split hair and broken hair are not suitable for dyeing. If you dye your hair, the damage will be more serious.
Menstrual women
Menstrual women have low resistance and are more susceptible to the influence of hair dye, which affects the Nell secretion function of the body.
Scalp breakage
Skin barrier of scalp injury (such as eczema, psoriasis, folliculitis, trauma, etc.). ) incomplete, when dyeing hair, the damaged skin absorbs harmful substances, which aggravates the ulcer surface and affects wound healing.
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How can we reduce the harm of dyeing hair?
Don't wash your hair the day before dyeing your hair.
The oil secreted by the scalp can protect the scalp well, and they can prevent harmful substances from infiltrating into the body through the scalp to a certain extent, so try not to wash your hair before dyeing.
Apply some lotion around the hairline.
Before applying the hair dye, you can apply some emulsion or vaseline ointment around the hairline, or perhaps apply the hair dye at a distance of 1 cm from the hair root to prevent the hair dye from directly contacting the scalp.
Don't mix hair dye
Do not mix different brands of hair dyes to avoid unnecessary chemical reactions and damage to the scalp.
Don't trust pure natural products
Any hair dye contains more or less chemicals, even the so-called "pure plant" hair dye is no exception.
Wash more after dyeing.
In order to prevent the hair dye from remaining on the scalp for a long time, wash your hair more after dyeing to avoid the accumulation of chemical components on the scalp for a long time.
Tips: Everyone loves beauty, but don't hurt your body for beauty's sake. Therefore, it is beneficial to maintain your health to know these precautions before dyeing your hair.