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Why Blonde Hair Turns Green in the Pool (and It’s Not Chlorine’s Fault)

Friday, 26 September 2025

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Senior Lecturer in Chemistry, Dr Magdalena Wajrak, was featured in the ZME Science Blog article titled “Why Blonde Hair Turns Green in the Pool (and It’s Not Chlorine’s Fault)”. She sheds light on the surprising chemistry behind the green tint swimmers often experience, revealing that copper - not chlorine, is the true culprit. The article discusses how copper ions bind to hair, especially when it's chemically treated or sun-damaged, and offers expert advice on how to prevent and treat the discoloration.

Read the full article to learn more about the science behind pool hair and how to protect your locks this summer.

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