Some women with afro and curly textured hair use chemicals to straighten their hair. But using these products can lead to burns and skin irritation. And some of the ingredients, like formaldehyde, are carcinogens. Some studies have shown a link between their use and higher rates of some cancers.

Kate Holden, a hair and scalp expert, tells us how chemical straighteners work. Dorcas Wangira, the BBC’s Africa Health correspondent, explains the health effects of using these products. Mary Isokariari from the What in the World team discusses why some women feel pressure to straighten their hair. Chinenye Ézémbu in Nigeria tells us why she chemically relaxes her hair and Deborah William shares her health issues, which she thinks are linked to her use of chemical hair straighteners.

Email: whatintheworld@bbc.co.uk WhatsApp: +44 0330 12 33 22 6 Presenter: Hannah Gelbart Producers: Mary Isokariari, Emily Horler and Adam Chowdhury Researcher: Jaidaa Taha Editor: Julia Ross-Roy

How dangerous are chemical hair straighteners and relaxers? 12:20 Share

What in the World

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How dangerous are chemical hair straighteners and relaxers?