Recently, an inconspicuous news caught our attention, she said that Ye Qianwen, who resolutely said that she would not dye her hair, finally dyed her hair again.
Fortunately, in today's era of advanced information, it is not difficult to verify the truth of a rumor.
We only need to trace the source of the image through the search engine to find out the original source of the image, which turns out to be an old photo from 2012.
Obviously, this is another piece of fake news.
Ye Qianwen insisted on showing people with white hair, and she once explained to the outside world why she insisted on not dyeing her hair, "I want to share with you my true self, external and internal, appearance and heart!"
It's a confident state of mind, but perhaps the real reason is more than that.
In fact, it is not only Ye Qianwen who is reluctant to dye her hair among the stars, but also Ye Tong, Shu Qi, and Stephen Chow.
On the one hand, the reason for this dislike of hair dyeing is the indifference of frankly facing life, and at the same time, it also contains concerns about the safety of hair dyeing itself.
Their worries are not unfounded, and on November 23, 2023, the State Food and Drug Administration issued the "Notice on 45 Batches of Non-compliant Cosmetics" (hereinafter referred to as the "Notice"). According to the "Notice", hair dye is the hardest hit area of unqualified cosmetics.
Attached: Information on 45 batches of non-compliant cosmetics
The problems identified include the detection of hair dyes such as phenylmethylpyrazolidone, p-phenylenediamine, and p-aminophenol that are not indicated on the product label.
At present, the most widely used on the market is synthetic hair dyes, also known as oxidized hair dyes, which generally use dyes with small molecular weights. First of all, the hair swells under alkaline conditions, so that the pigment molecules enter the hair crude fibers, and then the pigment macromolecules are formed through the action of peroxide and dyes, and the dye molecules are finally firmly fixed in the hair fibers to achieve a better dyeing effect, which is not easy to be rinsed, so the dyeing effect is long-lasting.
The main components of oxidative hair dye are aromatic amines, phenols and other organic compounds, which are reported to have different degrees of sensitization, carcinogenicity and teratogenicity.
Taking the unidentified p-phenylenediamine detected this time as an example, according to the list of carcinogens published by the International Agency for Research on Cancer (IARC), it belongs to Group 3 carcinogens.
Recently, a study published in the British Medical Journal (BMJ) explored the association between the use of permanent hair dye by individuals and the risk of developing cancer in general and specific cancers, as well as the risk of cancer-related death.
The results of the study showed that there was no significant association between the use of permanent hair dye by individuals and the risk of most cancers and cancer death. However, it is associated with an increased risk of basal cell carcinoma and some breast and ovarian cancers.
In addition to the carcinogenic risk of dyes, Asians have black hair dyes that are most commonly used because they have black hair, and such hair dyes generally contain the heavy metal lead. Because lead has strong reproductive toxicity and neurotoxicity, and cannot be eliminated in the human body, it is easy to cause accumulation poisoning, which can cause allergies at least, arteriosclerosis, and induce cancer and other diseases.
However, although there are certain risks associated with long-term use of hair dyes, there is no need to choke on food, as long as we reduce the number of uses on the one hand, and on the other hand try to choose safe products, it is completely possible to achieve both beauty and safety.
After all, a tertiary carcinogen is defined as one that may be carcinogenic rather than definitely carcinogenic. Just be careful.
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Today's recommendation
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Today's introduction to you is the "14 Hair Dye Evaluation Report" made by Consumer Reports: Three products have quality defects, claiming that "natural" hair dye powder has serious safety problems.
A total of 14 brands of hair dyes were tested in this evaluation, of which 12 were oxidized hair dyes, including dyes (p-phenylenediamine, toluene-2,5-diamine, m-aminophenol, p-aminophenol, resorcinol, phenylmethylpyrazolinan, 2,4-diaminophenoxyethanol hydrochloride, 4-amino-2-hydroxytoluene), heavy metals (mercury, lead, arsenic, cadmium), microbial indicators (total number of colonies, total number of molds and yeasts).
After some rigorous evaluation, its recommended list is as follows:
If you have the results of product quality evaluation at home and abroad, please leave a message to us.