A number of popular sunscreen products could pose a cancer risk if left on the shelf for too long, according to a new study.
In groundbreaking research, US and French scientists found that a number of popular sun lotions contained a chemical called octocrylene.
Researchers said that this chemical can actually become harmful and carcinogenic over time if it produces another compound called benzophenone.
Scientists are now calling for the products to be banned and want consumers to be aware of the dangers.
in the a study published in the journal Chemical Research in Toxicology, researchers examined a number of well-known brands of sunscreen products.
They tested products from brands including from Garnier, LaRoche-Posay, L’Oreal and Neutrogena, all bought in stores in the US and France.
After artificially aging some of the creams, scientists have found the compound that is used to protect the skin from the harmful effects of the sun. Octocrylene degrades to benzophenone over time.
Speaking of which to France info About the study, said Dr. Didier Stien, one of the authors: “When benzophenone is on the skin, dermatitis can develop. It can cause cancer, especially liver cancer.”
“It is a molecule that affects the thyroid function and disrupts the development of the reproductive organs.
“To our knowledge in the scientific literature and in general, nobody [before this study] had shown that octocrylene is broken down to benzophenone. “
Dr. Stien said manufacturers and consumers need to be aware that products containing octocrylene and benzophenone can be dangerous and urged them to be banned.
In the study’s conclusion, scientists said, “There is enough scientific literature to argue that octocrylene / benzophenone products can pose a threat to individual and public health.
“Several jurisdictions, including the Republics of Palau and Marshall Islands and the US Virgin Islands, have banned octocrylene in sunscreens and cosmetic products with effect from January 2020.
“It is convenient that there needs to be more refined, more stringent, unbiased data on exposure and toxicity of these chemicals and the products they contain.”
According to the Cosmetic Toiletry & Perfumery Association, the new study is not intended to show that octocrylene-containing sunscreens pose a health risk to humans, only that benzophenone impurities may be present in sunscreens after manufacture.