Sunscreen is one of the essential sunscreen products for many women in summer, which is deeply loved by girls who love beauty. However, zinc oxide, a common component of sunscreen, will release harmful free radicals in the sun, increasing the risk of skin cancer. Will sunscreen cause cancer?
It is well known that prolonged exposure to the sun can seriously increase the risk of skin cancer. Therefore, in summer, many people will wear a layer of sunscreen when they go out to reduce the sun's irritation to the skin and hope to prevent skin cancer. But the latest research points out that sunscreen itself contains unsafe ingredients that can lead to skin cancer.
Research findings: observe what happens to the various components of sunscreen in the sun. Dr. Yinfa Ma, a professor of chemistry who led the research, found that zinc oxide, a common ingredient in sunscreen, can release harmful particles called 'free radicals' under strong light. Excessive 'free radicals' can damage human cells and DNA strands in cells, leading to an increased risk of skin cancer.
Professor Ma immersed lung cells in zinc oxide solution and then irradiated the solution with various kinds of light. He found that lung cells die fastest under ultraviolet light. However, even under ordinary visible light, the deterioration rate of lung cells is not optimistic.
In addition, the longer the light exposure time, the greater the harm of free radicals. Half of the lung cells in zinc oxide solution died after 3 hours of UV irradiation. After 12 hours of irradiation, the number of dead cells increased to 90%.
The research paper will be published in the academic journal toxicology and Applied Pharmacology. Professor Ma pointed out that the use of lung cells instead of skin cells in the experiment is only the preliminary stage of zinc oxide research. He cautioned that we should not rush to draw any conclusion on the safety of sunscreen from the above experimental results. More and more in-depth experiments still need to be carried out.
Can sunscreen still be used? Professor Ma said, "I suggest you continue to use sunscreen. After all, it's better to have sunscreen effect than no prevention.
This is what I would like to introduce some of the reasons why improper use of sunscreen can cause cancer. Are you surprised? So when you choose sunscreen in the future, you must choose regular manufacturers. Don't apply a lot of sunscreen every day. This is not a good habit. You should also avoid exposure to the sun for a long time, which is very harmful to your skin.