The Food and Drug Administration has approved the use of bemotrizinol (BEMT) in U.S. over-the-counter sunscreens. The broad-spectrum UV filter chemical has been popularly used in European and Asian brands of sunblock for decades and offers benefits other sunscreen ingredients don’t.
“For too long, American consumers have been applying sunscreen and believing they were fully protected,” said Alexa Friedman, a senior scientist at the Environmental Working Group, in a statement. Efforts to approve new sunscreen ingredients were “bogged down for decades by the FDA’s bureaucratic system,” said The Associated Press. Bemotrizinol’s approval marks the “first ingredient to go through a streamlined process authorized by Congress in 2020.”
UVB’s “high-energy radiation” is typically “associated with sunburns and can cause genetic mutations that lead to skin cancer,” said Scientific American. The “longer-wavelength radiation” of UVA rays can “penetrate deeper into the skin than UVB, breaking down the skin’s structure and creating harmful skin‑aging molecules.”
While most U.S. sunscreens are effective against UVB radiation, they provide “significantly lower UVA protection,” said a 2021 study in the journal Photodermatology, Photoimmunology & Photomedicine. But BEMT is capable of “protecting against both ultraviolet A and B rays” and without “leaving white streaks” like sunscreens with zinc oxide, said the AP. In addition, BEMT is “highly photostable,” said Yahoo Health, so it “remains effective when exposed to sunlight for extended periods.”
An anti-sunscreen movement has grown amid an “increasing distrust of the medical establishment,” said The Washington Post. Much of the concern focuses on chemical sunscreens, which get absorbed into the skin. Another benefit of bemotrizinol, said NBC News, is its “low levels of absorption.”
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