In February of this year, a test of 49 well-known cosmetics in Canada found that almost all cosmetics contained toxic substances such as arsenic, cadmium, lead and mercury. Where do the heavy metals in cosmetics come from? What harm does it cause to the human body? How should we test? With the above questions, the reporter interviewed relevant experts.
Heavy metal over-standard traceability:
Raw materials are contaminated
"The 49 well-known cosmetics contain heavy metals and other toxic substances." When the news came out, the beauty-loving people were stunned, and the products of big brands could not stand it? Where did these heavy metals come from?
Beauty expert Dr.E said that big brands often have a good brand history and research team, and the quality inspection is also very strict, so heavy metals are not generally added deliberately. He said that the detected heavy metals may be caused by contamination of cosmetic raw materials. "Water, plants, etc. may contain trace substances, and cosmetics are generally derived from plants and chemical products such as oil and coal. It may not be surprising that these materials contain traces of heavy metals." Dr. E said that "the safety standards for cosmetics at home and abroad are very strict. Therefore, the heavy metals that may be contained in cosmetics are generally very small. In the safe range, consumers are expected to be scientific and objective."
Dr. E said, “Consumers need to pay more attention to global environmental problems. The risk of human beings eating, drinking, and breathing is far greater than the traces of heavy metals that may be present in cosmetics.â€
If you want to speed up
Whitening products carefully selected
The reporter also learned that among various heavy metals, lead and mercury do have the effect of rapidly whitening the skin. Some unscrupulous merchants may add these ingredients to the product in pursuit of profit. “If consumers use certain whitening products very quickly and obviously, it is very dangerous, and the products may contain lead or mercury.†Jiang Wei, deputy chief physician and MD of Peking University Third Hospital, said that lead and mercury have It makes the skin whiten quickly, but using them to whiten is tantamount to drinking and quenching thirst. “Once it is stopped, the skin will become 'flowers', showing red, black and white colors, which we call 'skin heterochromia'. Long-term use of cosmetics containing lead and mercury may cause harm to blood and organs. Damage the body."
According to Dr. Jiang Wei, lead and mercury are the nationally banned ingredients, and the substances legally used for whitening are salicylic acid, levorotatory VC, etc. These substances are milder and do not harm the human body under normal conditions. Dr. Jiang reminds consumers to choose big brands when choosing skin care products. They also pay attention to their ingredient information when purchasing. Try not to buy products that are made by some beauty salons and have no ingredient label. In the event of heavy metal poisoning and cutaneous heterochromia, it is necessary to go to a regular hospital for treatment.
Injury and injury "God"
Be wary of mercury poisoning
Hao Fengtong, chief physician of the Department of Occupational Diseases and Poisoning Medicine, Beijing Chaoyang Hospital, Capital Medical University, told reporters that mercury poisoning is the most common case in clinical cases of heavy metal poisoning. "In the outpatient clinic, patients who came to see a doctor because of the use of cosmetic products first asked whether to use whitening and freckle products, which almost became my 'professional language'." Hao Fengtong told reporters that mercury is also called elemental mercury or metallic mercury, commonly known as mercury. It can block the synthesis of human tyrosine and prevent the formation of melanin. “There is an objective effect of whitening the skin, but whitening it at the expense of health.â€
Hao Fengtong said that chronic mercury poisoning first affects the nervous system, and its early manifestations are consistent with neurasthenia, such as memory loss, poor sleep quality, lack of mental concentration, etc., due to the lack of symptom directivity, wide coverage, many patients at this stage Will ignore and will not link these performances to mercury poisoning. As time goes by, the temperament of patients with mercury poisoning will change, such as becoming paranoid and so on.
Nephrotic syndrome is also one of the possible harms caused by mercury poisoning. According to Dr. Hao Fengtong, nephrotic syndrome is not a single disease, but a group of syndromes caused by glomerular lesions for various reasons. Nephrotic syndrome is typically characterized by massive proteinuria, hypoalbuminemia, high edema, and hyperlipidemia.
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