Does Ozempic or Zepbound Cause Hair Loss? What the Labels Say
GLP-1 hair loss: what the Wegovy, Zepbound, Ozempic and Mounjaro labels report, why fast weight loss sheds hair, how rare it is in men, and when to get help.
By Julian Caraulani · Last updated
SafetyReviewed by Dr. A. Goher, MBBS
- FDA-approved and compounded
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- No state list published
This page sets out what each label says, why fast weight loss can shed hair, and how to tell that shedding apart from pattern hair loss. It ends with what treats pattern loss if that is what you have. We are not your doctor, and nothing here replaces one.
What each label says about hair loss
| Drug | Main use | What the label reports | Source |
|---|---|---|---|
| Wegovy (semaglutide) | Weight loss | Hair loss in 3% vs 1% on placebo in its main trial table; 0.9% of men vs none on placebo in a pooled analysis | Wegovy label |
| Zepbound (tirzepatide) | Weight loss | Hair loss in 4% to 5% across doses vs 1% on placebo; 0.5% of men | Zepbound label |
| Ozempic (semaglutide) | Type 2 diabetes | Alopecia listed in reports after approval | Ozempic label |
| Mounjaro (tirzepatide) | Type 2 diabetes | Alopecia listed in reports after approval | Mounjaro label |
Placebo means a dummy shot, like a sugar pill, with no drug in it. Alopecia is the medical word for hair loss. All four labels were read on DailyMed on 14 Nov 2026.
Wegovy and semaglutide hair loss
The Wegovy label puts hair loss on its list of common side effects. It explains: "Hair loss adverse reactions in WEGOVY injection-treated patients were associated with weight reduction" (DailyMed: Wegovy label). An adverse reaction is a side effect.
The split by sex is the key number for men. In the pooled studies, hair loss hit "(4% female, 0.9% male)" on Wegovy (DailyMed: Wegovy label). So fewer than 1 man in 100 reported it.
Ozempic holds the same drug, semaglutide, for type 2 diabetes. Its label lists "Skin and Subcutaneous Tissue : alopecia" among reports made after approval (DailyMed: Ozempic label). The label warns that such reports come "from a population of uncertain size", so a rate cannot be worked out.
- FDA-approved and compounded
- LegitScript seal ID shown
- No state list published
Zepbound, Mounjaro and tirzepatide hair loss
Zepbound also lists hair loss among its common side effects. The label states that "hair loss was reported more frequently in female than male patients" (DailyMed: Zepbound label). For men it was 0.5%, against 0% on placebo. It adds that no one on Zepbound in those studies quit the drug because of hair loss.
Mounjaro holds the same drug, tirzepatide, for type 2 diabetes. Its label lists alopecia among reports after approval (DailyMed: Mounjaro label).
What newer studies found
Two 2026 studies looked beyond the labels.
A pooled study combined the results of nine trials with 4,114 GLP-1 users. It found "a significantly higher risk of hair loss in GLP-1 RA users than in placebo users", with an event rate of 3.9% (Cheng and Chang 2026, PubMed). GLP-1 RA is short for these drugs.
A large BMJ study used health records of adults with type 2 diabetes. It found GLP-1 drugs were linked to more hair loss than two other diabetes drug types. The authors wrote: "Although the absolute risk is low, awareness of this potential effect may help to inform treatment decisions" (Tang et al. 2026, BMJ, PubMed). They also found the link was "specific to non-scarring alopecia". That is hair loss where the root survives and can regrow.
Why fast weight loss sheds hair
The labels tie the hair loss to weight loss, not to a direct effect on the hair. Dermatologists see the same shedding after any big shock to the body.
The American Academy of Dermatology lists who tends to shed more. The list includes people who have "Lost 20 pounds or more", "Undergone an operation" or had a high fever (AAD: hair loss or hair shedding?, read 14 Nov 2026). The medical name is telogen effluvium.
The AAD also gives the timing: "Most people notice the excessive hair shedding a few months after the stressful event." And the good news: "As your body readjusts, the excessive shedding stops." It says hair tends to regain its fullness within six to nine months. Our guide to telogen effluvium vs male pattern baldness explains the difference.
Is it shedding or pattern hair loss?
The two can look alike in the shower drain, but they differ:
- Shedding after weight loss. Hair thins all over the scalp. It starts a few months after a big change and usually settles on its own.
- Male pattern hair loss. Hair thins at the temples or crown over years. It does not stop on its own. The AAD says, "Without treatment, you will continue to lose hair" (AAD: what causes hair loss).
Some men have both. Losing weight can make thinning you already had easier to see. A dermatologist can tell which you have. Our what causes hair loss in men guide covers the other causes.
What to do if your hair is falling out on a GLP-1
- Do not stop the drug on your own. Ask the clinician who prescribed it first.
- Eat enough protein and nutrients. The AAD says too little iron, protein or zinc can cause hair loss.
- Give it time. Shedding from weight loss usually stops once the body adjusts.
- Get checked if it lasts. Patchy loss, or thinning that keeps going past several months, needs a doctor.
If it is pattern hair loss: what treats it
Shedding from weight loss needs no drug. Pattern hair loss does respond to treatment. Finasteride is the FDA-approved pill, and minoxidil foam is approved over the counter. The cheapest hair loss plan we track is Keeps at $14 a month, checked November 14, 2026. Keeps lists minoxidil foam at $8.92 a month. Every program, scored on price and care, is on the best online hair loss programs. If you need GLP-1 prices instead, our sister site GLP-1 Watchdog tracks them.
Questions
FAQ
Does Ozempic or Zepbound cause hair loss?
Both can, though it is uncommon in men. The Zepbound label reports hair loss in 0.5% of men against 7.1% of women, tied to weight loss. The Ozempic label lists hair loss among reports made after approval. Most cases look like shedding after fast weight loss, which usually stops as the body adjusts.
Does Mounjaro cause hair loss?
The Mounjaro label lists alopecia, meaning hair loss, among side effects reported after approval. Those reports cannot give a rate. Mounjaro holds tirzepatide, the same drug as Zepbound. The Zepbound weight-loss trials found hair loss in 0.5% of men, linked to weight reduction.
How common is tirzepatide hair loss?
In the Zepbound weight-loss trials, hair loss affected 4% to 5% of patients across doses, against 1% on placebo. It was far more common in women than men. For men, the label gives 0.5%. No one in those trials stopped the drug because of hair loss.
How common is Wegovy or semaglutide hair loss?
The Wegovy label lists hair loss in about 3% of patients against 1% on placebo. In a pooled look, 0.9% of men and 4% of women reported it. A 2026 pooled study of nine trials gave an overall rate of 3.9%. The label links the hair loss to weight reduction.
Will my hair grow back after GLP-1 hair loss?
Shedding after fast weight loss usually stops on its own. The American Academy of Dermatology says hair tends to regain its normal fullness within six to nine months once the body readjusts. Thinning that lasts longer, or that sits at the temples or crown, may be pattern hair loss and is worth a doctor visit.
Should I stop my GLP-1 because of hair loss?
Do not stop on your own. Talk to the clinician who prescribed it. The AAD warns that stopping some medicines suddenly can cause serious problems. Hair shedding from weight loss is usually temporary, and your clinician can check for other causes such as low iron or thyroid problems. Every hair loss price, with its source and read date, is on our hair loss price page.
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