Netizen "@ Lily's Water Bottle" @ Zhejiang Weibo Doctor: A dermatologist said that nail pollen is forbidden to dye hair in China, so don't use it too fast! But the elders at home like to dye their hair with nail pollen. After all, it is a plant, and their family is highly allergic. They can't use the chemical hair dye outside, and they are allergic after the second skin test. It's okay to use nail pollen I don't know what happened to henna. What happened?
Weibo, who reminded the plant that the hair dye was toxic, was quickly forwarded 770 times, with fierce comments. Many people are worried about their parents at home and want to ask experts, "Is plant hair dye reliable?"
Yesterday, the reporter consulted relevant literature and interviewed dermatologists in some hospitals in Hangzhou for verification. It was found that this plant hair dye widely used by middle-aged and elderly people is indeed toxic, and it may even lead to abortion when used by pregnant women.
How hot is plant hair dye?
An online shop sells 1.7 million boxes a month.
Weibo said that plant hair dyes are toxic because they contain nail pollen.
What is nail powder? Zhu Xuejun, a professor of dermatology at the First Hospital of Peking University, said: "Nail pollen is the extract of plant henna, also called henna. Toxicological studies show that the plant extract has mutagenic effect and there are potential safety hazards. "
The reporter searched the popular plant hair dye on the Internet, whose main component is nail pollen. There are 9908 pieces of information about a shopping website, and the store with the largest sales volume sold more than 17000 pieces (boxes) within 30 days, which shows the popularity of sales.
The reason why it was chased by reporters is because the propaganda of plant hair dye "pure natural plant extraction, no * * *" is particularly attractive. Some shops will also put a video on the page to prove that this hair dye can even be eaten-a middle-aged woman mixed eggs, red wine, olive oil, coffee partner and gray-green powder and put it in her mouth to dye her hair while eating. Gray-green powder is henna powder.
The plant hair dye widely used now is toxic, which has attracted countless netizens' concerns:
@ Yuhe66: I have been using it all the time, and my hair is almost white at a young age. What should I do?
@-Mister-:Many people are using it, and they need popular science urgently.
@ Zheng Nina: I dyed my hair with nail pollen without knowing that I was pregnant. I was about three weeks pregnant. Does it affect the fetus?
@ brainless and unhappy warmth: so is my family. I'm going to cry. My parents and grandparents used it for many years and said it was very good. What should I do?
@ Jingjing Jingjing-Fangsheng: Can it be understood as choosing nail pollen to dye hair = choosing high risk, which may be poisoned, but not 100% poisoning; Choosing chemical hair dyeing = testing poison with your own body?
YXK7: Why didn't I see this earlier? I just used it. My allergic reaction is very serious. My whole head is swollen and my scalp is itchy and yellow. I regret it! It is foolish to preach pure nature and let your guard down!
Interpretation by Hang Cheng experts:
Henna can indeed cause miscarriage in pregnant women.
Plant hair dyes can be eaten, which is a false advertisement. And then only use it to dye hair. How toxic is henna to human body?
The reporter passed the verification of Dr. Lin Yi and the International Literature and Food and Drug Administration.
In the literature database, the reporter searched more than a dozen research literatures about the toxicity of henna.
Shen Hong, director of the dermatology department of the Third Hospital of Hangzhou, said: Never trust the natural properties of plant hair dyes. Because the hair dye extracted from plants can't make the color and hair' bite' for a long time, the hair dye that can be colored for a long time must have added chemical components, but it is only a matter of more or less chemical components. Director Shen Hong doesn't advise people to dye their hair regularly unless they occasionally dye their hair on special occasions, because according to foreign research, people who dye their hair are about three times more likely to suffer from hematological diseases and lymphoma than ordinary people.
Wu Liming, director of the dermatology department of a hospital in Hangzhou, also pointed out that papers including "Study on the Severe Toxicity of Henna Flower Extraction" published on 201/showed that animal experiments proved that Henna flower could induce spontaneous abortion in pregnant women, and when the dose was large, it would also cause dizziness, loss of appetite, fatigue, short-term amnesia and other symptoms. Wu Liming said that even low-dose use of henna is still dangerous for pregnant women.
Experts unanimously reminded that the European Union's "Scientific Committee on Cosmetics and Non-food Products" has already issued a statement that henna is toxic to bone marrow and is not suitable as a hair dye or any other cosmetics.
Pure plant hair dye
None of them were successfully approved in China.
Then, is the good plant hair dye sold in online stores approved by relevant departments in China and allowed to be used?
The reporter inquired through Zhejiang US Food and Drug Administration, and the result was also "forbidden".
The reporter found that in 2007, the Ministry of Health clearly pointed out in the reply that henna cannot be used as hair dye.
The relevant staff clearly told reporters that there is no "pure plant hair dye" completely extracted from plants in China. Hair dyes approved by the US Food and Drug Administration are all chemical preparations.