evidence: Cancer-causing chemical found in 78 sunscreen products [...] An independent testing lab has detected the chemical benzene, a known human carcinogen, in 78 sunscreen products and is now calling on the U.S. Food and Drug Administration (FDA) to recall the products. [...] The findings do not mean that people should stop using sunscreen, which can help prevent skin cancer, Bunick said "Many sunscreen products tested by Valisure did not have benzene contamination, and those products are presumably safe and should continue to be used, along with appropriate hats and sun-protective clothing, to mitigate skin cancer risk," Bunick said.