UV lamps in semi-permanent manicures increase the risk of skin cancer.

UV rays from the sun, such as tanning beds, are known to accelerate the signs of skin aging and increase the risk of skin cancer. UV and LED lamps used in beauty salons to catalyze semi-permanent manicures or gel nails both emit the same UV rays. So should we be worried?

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This was the whole meaning of the new American scientific research carried out by the University of California, which was published on January 17, 2023 in the journal. Nature . Verdict: The results show that wavelengths of ultraviolet (UVA) light from these lamps can damage DNA and cause mutations in human cells that increase the risk of skin cancer.

There is no direct link

Researchers at the University of California, San Diego and the University of Pittsburgh exposed human and mouse cell lines in detail to UVA light from these devices. Experiments show that after a single exposure of 20 minutes, 20 to 30% of cells die. Then, after three consecutive 20-minute exposures, 65 to 70% of the cells die. In both cases, DNA damage in the remaining cells leads to melanoma-like mutations. “Our experimental results, combined with what is already in the medical literature, strongly suggest that radiation from these nail dryers can cause hand cancer and that, like tanning beds, they can increase the risk of early cancer.” we can read

However, it should be noted that the research did not involve real people, but cells derived from humans and animals. Thus, researchers cannot conclude that these UV lamps increase the risk of cancer based on these experiments alone. A large-scale epidemiologic study should be conducted to truly quantify the cancer risks in the population that regularly uses these machines. The authors estimate that such a project would take at least ten years to complete.

“We see very clearly that it has a negative effect on cells and damages DNA,” said one of the study’s lead authors, UC-San Diego associate professor of cellular and molecular medicine Ludmil Alexandrov. washington post: .

Prevention

From the beginning, the topic of study began with a very specific case. “It became known to us that the model of Miss Illinois USA has developed a rare type of cancer on the nails. He himself said that this cancer was caused by the frequent use of gel nail polish. So we decided to look at the UV devices used in nail salons,” Maria Zhivagi, the first author of the study and a postdoctoral researcher in San Diego, explained in an interview with the magazine. Science and the future . After that, the specialist realized that several medical journals had already reported cases of nail cancer and cancer of the back of the hand among cosmetologists after exposure to ultraviolet radiation in beauty salons. A few weeks ago, the American Academy of Dermatology already recommended applying sunscreen before applying gel polish manicures, explaining that these procedures can “increase the risk of skin cancer.”

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