Proctor and Gamble voluntarily recalled more than 30 aerosol dry shampoos and conditioners on Friday due to concerns over the levels of benzene, which is a chemical known to cause cancer. The U.S.

Benzene has become one of the most talked-about chemical concerns in beauty and personal care, especially after recalls involving sunscreens, dry shampoos, and sanitizers. It’s a known carcinogen, yet ...