In recent years, several states and localities have passed “crown” laws, statutes that keep employers from discriminating against African Amercans for wearing their hair in natural styles. That’s because, historically, having straight hair has often been a requirement for professional advancement for Black women in particular. But there is more science emerging that connects chemical relaxers with cancer. In today’s episode of A Word, reporter and cancer survivor Victoria St. Martin speaks with host Jason Johnson about the dangers of formaldehyde in hair relaxers, the history of marketing toxic cosmetics to African Americans, and consumer efforts to raise awareness. Guest: Victoria St. Martin, Inside Climate News reporter  Podcast production by Kristie Taiwo-Makanjuola You can skip all the ads in A Word by joining Slate Plus. Sign up now at slate.com/awordplus for $15 for your first three months. Learn more about your ad choices. Visit megaphone.fm/adchoices