# Hair loss on a GLP-1

> Mounjaro’s and Wegovy’s leaflets list it as common, up to 1 in 10 people, and both NHS pages name it. Mounjaro’s lists it for people treated for weight management, and Wegovy’s says it may happen more often at 7.2mg. Zepbound’s label says hair loss in its trials was associated with weight reduction.

Canonical: https://jabwise.app/guides/hair-loss. Sources checked 12 October 2026. General information, not medical advice: follow your prescriber.

## Where it’s listed

From each leaflet and Zepbound’s label, quoted as written. Ozempic’s leaflet doesn’t list hair loss, though the NHS semaglutide page does.

- **Mounjaro**: What it says: "Hair loss observed in patients treated for weight management" ([Mounjaro KwikPen patient leaflet](https://www.medicines.org.uk/emc/product/15481/pil)); How common: "Common (may affect up to 1 in 10 people)" ([Mounjaro KwikPen patient leaflet](https://www.medicines.org.uk/emc/product/15481/pil))
- **Zepbound**: What it says: "Hair loss adverse reactions in ZEPBOUND-treated patients were associated with weight reduction." ([Zepbound prescribing information](https://uspl.lilly.com/zepbound/zepbound.html)); How common: "The most common adverse reactions, reported in ≥5% of patients treated with ZEPBOUND" ([Zepbound prescribing information](https://uspl.lilly.com/zepbound/zepbound.html))
- **Wegovy**: What it says: "hair loss – may occur more frequently with semaglutide 7.2 mg" ([Wegovy FlexTouch patient leaflet](https://www.medicines.org.uk/emc/product/13800/pil)); How common: "Common: may affect up to 1 in 10 people" ([Wegovy FlexTouch patient leaflet](https://www.medicines.org.uk/emc/product/13800/pil))
- **Ozempic**: What it says: Not listed; How common: Not listed

## What else they say

- **More often in women**: In two Zepbound weight trials, one with type 2 diabetes, 7.1% of women on it reported hair loss, against 0.5% of men.
- **None stopped for it**: In those trials, the label says, nobody on Zepbound stopped treatment due to hair loss; one person on placebo did.
- **If it bothers you**: If a side effect bothers you or doesn’t go away, the NHS says a pharmacist or doctor may give advice on how to reduce it.
- **On stopping**: The NHS says keep taking your medicine unless you’re advised to stop, and talk to your doctor if you want to stop.

## Questions

### Does Ozempic cause hair loss?

Ozempic’s leaflet doesn’t list it. The NHS semaglutide page, which covers Ozempic and Wegovy, lists hair loss among semaglutide’s common side effects.

### Is it linked to losing weight?

Zepbound’s label says hair loss in its trials was associated with weight reduction. Mounjaro’s leaflet lists it for people treated for weight management.

### Will my hair grow back?

None of these sources says how long hair loss lasts. If it bothers you or doesn’t go away, the NHS says speak to a pharmacist or doctor.

## In Jabwise: Side effects

Count the days hair loss is there. “Hair Loss” is one of the check-in’s side effect tags. Side Effects counts the days you felt each one, over 7, 30 or 90 days, ready for your next review.

## Getting real advice

- **A pharmacist, your doctor or NHS 111**: If you’re not sure how to use your medicine, or a side effect bothers you or won’t go away. NHS 111 if you think you might be having serious side effects, or you’ve used too much. [NHS: Semaglutide](https://www.nhs.uk/medicines/semaglutide/), [NHS: Tirzepatide](https://www.nhs.uk/medicines/tirzepatide/), [NHS 111 online](https://111.nhs.uk/)
- **Report a side effect**: Anyone can, not only doctors. [Yellow Card (UK)](https://yellowcard.mhra.gov.uk/), [MedWatch (US)](https://www.fda.gov/safety/medwatch-fda-safety-information-and-adverse-event-reporting-program)

## Sources

- [Mounjaro KwikPen patient leaflet](https://www.medicines.org.uk/emc/product/15481/pil)
- [Zepbound prescribing information](https://uspl.lilly.com/zepbound/zepbound.html)
- [Wegovy FlexTouch patient leaflet](https://www.medicines.org.uk/emc/product/13800/pil)
- [Ozempic patient leaflet](https://www.medicines.org.uk/emc/product/9748/pil)
- [NHS: Tirzepatide](https://www.nhs.uk/medicines/tirzepatide/)
- [NHS: Semaglutide](https://www.nhs.uk/medicines/semaglutide/)