How weight loss drugs have been linked to surprising hair and nail problems

• A multinational study presented at the EADV Congress has linked GLP-1 weight loss medications, such as Ozempic and Wegovy, to unexpected side-effects affecting nails, hair, and scalps.
• Users of the drugs were found to be more than four times as likely to suffer from nail detachment compared to non-users, alongside experiencing noticeable nail discolouration.
• The research also revealed widespread scalp inflammation, hair thinning, and shedding among users, suggesting a biological response beyond standard weight-loss-related hair shedding.
• Scientists emphasised that weight loss alone could not account for these issues, though experts advise patients not to stop taking the medications without consulting a doctor.
• The findings were based on a controlled investigation of 575 patients across four countries, with long-term clinical trials now planned to monitor side-effects from the first dose.

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Weight loss jabs linked to unusual health problem in new study