For many girls and boys who care much about their beauty, there is a “top priority” thing to do every few months, that is, dying their hair in either gorgeous or low-keyed or bright or special style. They change the hair color into the trendy color, change the mood, and turned heads in the street.
There are also many confusions about dying hair.
I would like to dying hair together with my bestie.
But my boyfriend tell me that dying hair is carcinogenic and can cause hair loss.
Are those true?
After all many people dye their hair.
Then let’s talk about dying hair.
Basically dying hair is safe.
Let discuss about the most worrying question about cancerogen first.
The hair dyes on the market mainly include permanent, semi-permanent or temporary, as well as natural hair dyes. The carcinogenic view of hair dyes mainly focuses on permanent hair dyes.
Last year, the world’s top medical journal “British Medical Journal” (BMJ) published an article on hair dyes, which can be regarded as the longest observation data of the largest sample at present.
After 36 years of follow-up research and data analysis on the use of hair dyes by 120,000 female nurses in the United States, Harvard Medical School believes that permanent hair dyes have nothing to do with most cancers and are probably not carcinogenic.
At the same time, it was also found that when the number of hair dyes is sufficient, the risk of breast cancer, ovarian cancer, and basal cell carcinoma of the skin also increases slightly, although this increase is not obvious.
How to interpret the research? The relevant recommendations of the International Agency for Research on Cancer may be clearer. They classify occupational exposure to hair dyes as a category 2A carcinogen, and believe that personal use of hair dyes has insufficient evidence of carcinogenicity.
In other words, there may be a little danger to those barbers and production workers who are exposed to a lot of hair dye every day, and ordinary people who dye their hair several times a year, don’t worry about this. Dyed hair has at best a slight and uncertain risk of cancer.
Similarly, there is no sufficient evidence that the daily dyeing of ordinary people can cause hair loss.
What are the risks of dyeing hair?
The risk of carcinogenicity in daily hair dyeing is almost negligible, and there is no need to consider it when there are related needs. But there are also some relatively common troubles that should be considered before dyeing your hair.
➊ Allergy
The p-phenylenediamine (PPDA) and other ingredients in the hair dye may cause skin allergies. If some symptoms occur during hair dyeing, such as redness, swelling, irritation, burning, blisters, yellow water, etc. on the head and face, stop dying immediately and wash your hair.
In order to minimize allergies, when using a new hair dye, you can do an allergy test in the first 2 days, and rub it on the dyed and possibly contaminated areas to see if there are any special reactions.
You can also apply petroleum jelly or lotion on the hairline and behind the ears before dyeing the hair to prevent the hair dye from getting on the skin and causing damage.
Friends who have ever been allergic to hair dyes should try not to dye their hair again. Also remind the hairstylist who dye your hair that try not to let the hair dye touch the scalp, eyebrows, eyelashes and other dangerous parts.
➋ Hair damage
Frequent hair dyeing may make the hair more delicate and fragile, easy to break and damage, and the hair may become dull, rough and split.
If you want both the beauty of dyed hair and healthy hair, you must pay more attention to the maintenance of your hair than when you do not dye your hair.
Only from the perspective of hair damage, the damage of dyeing light colors is more obvious than dyeing dark colors. So if you choose one of the two shades of color, you can give priority to darker.
➌ Heavy metal poisoning
Hair dyes are allowed to add a certain amount of heavy metals, such as mercury and lead. However, some irregular and poor-quality hair dyes are prone to excessive heavy metals. If such a hair dye is used repeatedly for a long time, it may cause heavy metal poisoning.
So this requires us not only pay attention to cheap hair dyes, but choose regular and high-quality products as far as we can.
Hair care after dying is also very important
Hair dyeing does not end when the hair has color. The subsequent care is also very important.
Remember to choose the right shampoo and hair care products. Those with dry scalp and dry ends can choose shampoo with mild ingredients and use hair care products such as conditioners, hair masks, and essential oils to help repair damaged hair and make hair look smoother and brighter.
Friends who have oily scalp and dry ends can choose a shampoo with oil control effect, and then cooperate with hair care products.
For newly dyed hair, it is best to avoid being exposed to strong light. Remember to wear an umbrella and a hat when you travel outdoor. When washing your hair, the water should not be too hot.
When using hair dryers, straight clamps, and electric rollers, the temperature should not be too high, too close to the hair and scalp. Doing so can make the hair color fade a bit slower and make the hair more beautiful for longer.
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