Congresswomen press FDA on why a proposal to ban hair-straightening chemicals is delayed

Democratic Reps. Ayanna Pressley of Massachusetts and Shontel Brown of Ohio pressed the FDA in a letter to finalize the proposed rule for banning certain salon-grade and at-home hair straighteners.  NBC News Health

​Democratic Reps. Ayanna Pressley of Massachusetts and Shontel Brown of Ohio pressed the FDA in a letter to finalize the proposed rule for banning certain salon-grade and at-home hair straighteners.