‘Ozempic face’ and hair loss: what evidence is there for weight-loss drug side-effects?

The Guardian Health Saturday 25 July 2026, 07:00 UTC By Nicola Davis Science correspondent 1 min read

Key Points

Research into GLP-1 medications is not always robust but complaints such as digestive problems are well knownWeight loss jabs such as Wegovy and Mounjaro have boomed in popularity, and so have reports of myriad side-effects. This week researchers have suggested GLP-1 medications could be associated with hair loss. It can be hard to keep tabs on which of these unintentional outcomes have been the subject of expert scrutiny and which remain little more than hearsay.

Research into GLP-1 medications is not always robust but complaints such as digestive problems are well known

Weight loss jabs such as Wegovy and Mounjaro have boomed in popularity, and so have reports of myriad side-effects. This week researchers have suggested GLP-1 medications could be associated with hair loss.

It can be hard to keep tabs on which of these unintentional outcomes have been the subject of expert scrutiny and which remain little more than hearsay. We take a look at some of the most talked about side-effects and explore which have been studied – and which remain unproven.

Wegovy and Mounjaro (ORG)

Originally published by The Guardian Health Read original →

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