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Scott Weaver
Updated at: October 30, 2025 · 7 min read
Mounjaro Hair Loss: Can Tirzepatide Cause Balding?
In this article, we’ll look at whether hair loss is a known side effect of Mounjaro (tirzepatide) and what might be causing it. We’ll explore why some people may notice hair thinning while using Mounjaro, whether this type of hair loss is likely to be permanent and what steps you can take to help prevent or manage it. We’ll also explain when to seek medical advice and discuss the support available if you’re worried about losing hair while taking this medication.
In one sentence:
Hair loss can occur while taking Mounjaro (tirzepatide), but it’s usually a temporary side effect caused by rapid weight loss, stress, or nutritional deficiencies, and most people find that their hair starts to grow back within a few months once their body adjusts and overall health stabilises.
Key Takeaways
Here are the five biggest takeaways from this article about Mounjaro and hair loss:
Hair loss is officially recognised as a common side effect of Mounjaro, with some people using the medication having reported experiencing hair shedding.
The most likely cause of hair loss during Mounjaro treatment is a condition called telogen effluvium, which is often triggered by physical stress, emotional stress, or significant weight changes.
Most people find that hair growth begins to return to normal within three to six months, once the body has adjusted to weight loss and overall health has stabilised.
Preventing or reducing hair loss while taking Mounjaro involves focusing on sustainable weight loss, eating a nutrient-rich diet, staying well-hydrated, reducing stress and using gentle hair care products.
If hair loss lasts longer than six months, gets worse, or comes with other symptoms like fatigue or brittle nails, you should speak to a healthcare professional.
Is hair loss a side effect of Mounjaro?
Hair loss is currently listed as a common or direct side effect of Mounjaro (tirzepatide) in its official patient information leaflet [1]. However, some people using medications such as Mounjaro or similar weight loss injections have reported experiencing hair thinning or shedding [2]. It’s important to note that less common side effects of these treatments may include hair loss, as well as symptoms like fatigue, bloating, and heartburn [3].
While hair loss is not experienced by everyone, it can be an indirect effect of rapid weight loss [4]. Significant changes in diet and body weight can place temporary stress on the body, potentially triggering a condition called telogen effluvium, a form of temporary hair loss often linked to physical or emotional stress [5].
If you are experiencing hair loss while taking Mounjaro, it’s important to speak to a healthcare professional, especially if it is severe or persistent.
What are the potential causes of hair loss when taking Mounjaro?
There are a few reasons why someone might experience hair loss while taking Mounjaro, although the medication itself may not directly cause it.
The table below summarises the most likely causes and how they affect hair growth.
Cause | How it can lead to hair loss |
| Rapid weight loss | Significant or sudden weight loss can place the body under physical stress, leading to telogen effluvium - a temporary condition where more hairs than usual enter the resting phase and shed a few months later [7]. |
| Emotional or psychological stress | High stress levels can disrupt the normal hair growth cycle by triggering immune and hormonal changes that increase shedding [7]. |
1) Rapid weight loss
One of the most likely explanations for losing hair whilst using Mounjaro is rapid weight loss, which can place the body under physical stress. This type of stress can lead to a condition called telogen effluvium, where more hairs than usual enter the resting phase of the hair growth cycle and fall out a few months later [7].
In the video below Dr Amir Khan explains why GLP-1 weight loss medications can sometimes cause hair loss and what you can do to reduce it:
2) Emotional or psychological stress
Another factor might be emotional or psychological stress, which can occur alongside significant lifestyle changes, dietary adjustments, or as part of the overall experience of managing a long-term health condition. Research shows that stress can trigger immune and hormonal responses in the body that interrupt the normal hair growth cycle, resulting in increased shedding [7].
Is hair loss from Mounjaro permanent?
Hair loss experienced while taking Mounjaro is usually temporary. Telogen effluvium (the most common type of hair loss when using Mounjaro) tends to resolve on its own as your body adjusts to the changes. For many people, hair growth begins to return to normal within three to six months, once weight and overall health have stabilised.
If hair loss continues or becomes more severe, it may suggest an underlying issue such as a vitamin or mineral deficiency, a thyroid disorder, or another medical condition. If this happens, it’s important to speak to a healthcare professional for further assessment and support.
How to prevent tirzepatide-related hair loss
If you’re using the Mounjaro Kwikpen and have noticed some hair shedding, there are several ways to help protect your hair. Hair loss during treatment is usually temporary, and with the right care, growth typically returns to normal.
The table below outlines practical steps you can take to support healthy hair and reduce the risk of tirzepatide-related hair loss when using Mounjaro.
Prevention tip | How it helps |
| Aim for gradual, healthy weight loss | Rapid weight loss can place stress on your body and may trigger temporary hair shedding. Losing weight slowly allows your body to adjust naturally. Following the recommended Mounjaro dosing schedule helps reduce side effects linked to stress, such as hair loss [8]. Sticking to your prescribed dose, unless advised otherwise by a healthcare professional, supports steady progress and minimises strain on the body [9]. Remember, everyone responds differently, some may see results sooner, while others need more time [10]. |
| Eat a nutrient-rich diet | Maintaining a balanced diet is vital for healthy hair. Hair thinning during weight loss often happens due to nutritional deficiencies, especially when calorie intake drops [11]. Essential nutrients for hair health include:
Even if your appetite is reduced, include whole foods such as:
|
| Eat a balanced diet | Eating a balanced diet helps your body prioritise both overall health and hair growth. When your body lacks key nutrients, it focuses on vital organs over hair production. Protein, iron, zinc and biotin are particularly important for maintaining strong hair and healthy follicles [14]. |
| Stay hydrated | Water is essential for delivering nutrients to your scalp and keeping hair strong. Without enough fluids, hair can become brittle and break easily. Staying well-hydrated also supports your scalp’s health and helps the body absorb essential vitamins and minerals [15]. |
| Use gentle hair care products | Protect your hair by using mild shampoos and conditioners. Avoid harsh treatments like chemical dyes, bleach or perms, as these can damage hair and irritate the scalp. Try not to overuse straighteners or curling tools. When heat styling, use a protective spray and choose the lowest setting possible. |
| Manage stress and be patient | Stress can interrupt your hair growth cycle and increase shedding through a condition called telogen effluvium [16]. Activities such as journaling, meditation, yoga and regular exercise can help reduce stress, support emotional health and improve hair recovery. |
| Consider temporary options | While your hair recovers, wigs or hairpieces can boost confidence and help you feel more comfortable. These simple, non-medical options provide a natural look as your hair returns to its normal growth cycle. |
Why slow and steady progress matters
The Mounjaro treatment plan is designed to help you lose weight gradually. This steady approach allows your body to adapt safely, reducing the chance of stress-related side effects such as hair loss. Patience and consistency are key to supporting both your health and hair growth during treatment.
If your hair loss continues for longer than six months, becomes more severe, or is accompanied by symptoms like fatigue, brittle nails or mood changes, speak to a healthcare professional. They may carry out blood tests to check for nutritional deficiencies, thyroid issues or other medical causes that could be contributing to the problem.
When should I seek medical help?
Losing your hair can be a distressing experience, especially if it happens while you’re focusing on improving your health with Mounjaro. In most cases, any shedding that occurs is temporary and linked to the body’s adjustment to rapid weight loss or changes in nutrition and lifestyle.
By following the steps outlined above, such as eating a balanced diet, staying hydrated, managing stress and caring for your hair gently, you can support your body’s overall health and reduce the chances of experiencing significant or long-term hair thinning.
However, if hair loss continues for more than six months, becomes more severe, or is accompanied by other symptoms such as fatigue, brittle nails, or changes in mood or weight, it’s important to speak to a healthcare professional. They can carry out blood tests to check for potential underlying causes, including nutritional deficiencies, thyroid disorders, or other medical conditions that may be contributing to the shedding.
Final Thoughts
While hair loss is officially recognised as a common side effect of Mounjaro, some people may experience temporary shedding during treatment. This is often linked to factors such as rapid weight loss, nutritional deficiencies or increased stress levels, rather than the medication itself. The good news is that this type of hair loss is usually reversible and there are steps you can take to support healthy hair growth, including eating a balanced diet, staying hydrated, using gentle hair care products and managing stress. If hair loss lasts for a while, gets worse, or is accompanied by other symptoms, it’s important to seek advice from a healthcare professional to rule out any underlying issues.
Sources
[1] Mounjaro® 2.5 mg KwikPen® solution for injection in pre-filled pen - Medicines
[2] Do Ozempic, Wegovy, Mounjaro & Zepbound cause hair loss? - Drugs.com
[3] Zepbound UK Guide: Can you get the weight loss injections in the UK? - UK Meds
[4] Doctor’s Corner: Your Questions About Mounjaro Answered - UK Meds
[5] Telogen Effluvium - StatPearls - NCBI Bookshelf
[6] The Role of Vitamins and Minerals in Hair Loss: A Review | Dermatology and Therapy
[7] How stress causes hair loss | National Institutes of Health (NIH)
[8] Mounjaro dosing & titration: Which tirzepatide dosage do I need? - UK Meds
[9] Should I Stick to My Mounjaro Dose or Move Up? - UK Meds
[10] Mounjaro 5th Dose: Is It Safe? - UK Meds
[11] Which Vitamins To Take On Mounjaro? - UK Meds
[12] How To Stop Hair Loss: A Guide To Saving Your Hair - UK Meds
[13] Which Vitamins To Take On Mounjaro? - UK Meds
[14] Top Tips For A Receding Hairline - UK Meds
[16] How stress causes hair loss | National Institutes of Health (NIH)
Blog author
Scott Weaver
Scott is an experienced and professional content writer who works exclusively for UK Meds.
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