Does GLP-1 use result in significant hair loss?

Experts share what you need to know about GLP-1-related hair loss as the side-effect gets more attention from researchers

About 20 million people across the US, UK, and EU are taking GLP-1 receptor agonists like tirzepatide and semaglutide (Ozempic or Mounjaro are common brands) for weight loss and type 2 diabetes. As their use has surged, we’re learning more about their side-effects. One that’s been getting a lot of attention from researchers lately: hair loss.

In one survey of people who take these medications, 20% of respondents experienced hair shedding, although the lack of high-quality data from a randomized, controlled trial to assess this side-effect makes it difficult to know exactly how common it is.

While GLP-1-related hair loss is often temporary and reversible, it’s significant enough that some patients hesitate to take drugs they would otherwise benefit from using. Here’s what you need to know.

Most people who take GLP-1 drugs don’t have hair loss. However, those who do often notice it within the first year, usually peaking a little before the 12th month.