Does Wegovy Really Cause Hair Loss? Here's Everything You Need To Know

Medically reviewedby Dr. Amy Revene M.B.B.S.
WrittenbyLuat Duong
Last updated

Are you experiencing hair loss while using Wegovy? You're not alone. 

Many users report hair thinning as a possible side effect of this popular weight management medication.

In this article, we'll explore the connection between Wegovy and hair loss, providing insights and advice on how to manage this troubling side effect.

What is Wegovy? 

wegovy hair loss

Wegovy, approved by the Food and Drug Administration in 2021, is an injectable medication for weight loss, similar to drugs like Ozempic. It's specifically designed for overweight or obese patients with weight-related health issues. 

The drug contains semaglutide, originally used to manage type 2 diabetes, and it's the first of its kind approved for weight loss in both diabetic and non-diabetic individuals.

Originally developed as a treatment for type 2 diabetes, semaglutide—the active ingredient in weight loss drugs like Wegovy and Ozempic—has proven effective in managing obesity.

Unlike other semaglutide formulations like Ozempic, which are primarily diabetes treatments, Wegovy targets weight loss directly. As of 2023, it is also available in the UK, though its supply remains limited. 

Patients eligible for Wegovy can obtain it through the NHS upon recommendation from a weight management specialist. 

The medication, similar to other weight loss drugs, comes in pre-filled pens designed for easy use, delivering a 2.4 mg dose of semaglutide. Patients are advised to administer one injection per week while following a low-calorie diet and regular exercise regimen.

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How does Wegovy work?

Wegovy functions as a glucagon-like peptide-1 receptor agonist (GLP-1 RA). This means it activates receptors in the pancreas which increase insulin release and decrease glucose release, effectively lowering blood sugar levels.

Beyond its effects on the pancreas, Wegovy—like other GLP-1 receptor agonists such as Ozempic—also influences the gastrointestinal tract by slowing the stomach's emptying process.

This action helps reduce appetite and extend feelings of fullness, aiding in sustained weight management. This dual approach not only helps regulate blood sugar but also addresses the challenges of appetite control, making it an effective tool for weight loss.

Can Wegovy cause hair loss?

wegovy hair loss

In clinical trials involving 2,116 participants, about 3% of adults and 4% of children under 12 experienced hair loss during a 68-week treatment with Wegovy. This makes alopecia a recognized adverse effect of this medication.

Although hair loss has been documented among users of weight loss drugs like Wegovy and Ozempic, it's unclear whether it's directly caused by the medication or the significant weight reduction observed in these patients.

Placebo studies indicate that Wegovy can lead to up to a 15% reduction in body weight over 12 months, depending on the user's initial weight. 

Such a substantial decrease in weight can itself be a stress factor leading to hair loss. Further research is needed to determine the exact relationship between Wegovy and hair shedding.

Why does Wegovy cause hair loss?

There is currently no evidence directly linking Wegovy and other similar medications like Ozempic, Mounjaro, or Zepbound to hair loss. Instead, hair loss in patients using these drugs is likely due to the physical stress associated with rapid weight loss, which can lead to a condition known as telogen effluvium. 

This condition causes temporary hair shedding and often occurs after significant body changes or stress. 

Telogen effluvium typically manifests several months after a triggering event, such as extreme weight loss, and while it is generally temporary, the condition can cause noticeable thinning and loss of hair. 

Understanding this may help mitigate concerns for patients experiencing hair loss while using Wegovy or similar medications.

Is hair loss from Wegovy permanent?

No, hair loss from Wegovy is typically not permanent. Most cases are due to telogen effluvium, a form of temporary hair loss that occurs about three to six months after a stressful event, such as significant weight loss. As your body adjusts, hair usually starts to regrow within a few months.

While most hair loss associated with Wegovy is temporary, it's possible that some cases could be permanent, depending on factors like genetics, underlying medical conditions, or age.

If you're concerned about persistent hair loss, consulting with a hair restoration expert can provide insights into the cause and potential treatments to enhance hair regrowth and density.

Why does rapid weight loss cause hair loss?

weight loss hair fall

Rapid weight loss can trigger a type of hair loss known as telogen effluvium. This condition causes widespread hair shedding, typically two to three months after a significant stressor, such as major dietary changes or emotional distress. 

The stress can disrupt your natural hair growth cycle, leading to an increased number of hairs entering the shedding phase. 

A strict low-calorie diet can exacerbate this condition by mimicking a state of starvation, where your body prioritizes essential functions at the expense of hair growth

Additionally, such diets often lack essential nutrients like iron, zinc, and vitamins D and E, which are crucial for maintaining healthy hair. 

Ensuring a well-balanced diet and managing stress effectively can help mitigate hair loss associated with rapid weight loss.

Can my hair regrow if I stop using Wegovy?

Yes, if your hair loss is linked to Wegovy-induced telogen effluvium, you can expect your hair to start regrowing naturally within 3-6 months after you stop the treatment. However, it's important to inform your healthcare provider about your hair loss; they can help reassess your weight loss strategy and guide you toward healthier choices.

If you notice that your hair continues to thin or shed more than six months after discontinuing Wegovy, consider consulting a trichologist. 

Persistent hair loss might be indicative of other conditions, like androgenetic alopecia or alopecia areata, which require proper diagnosis and treatment to manage and potentially reverse.

Other medications that cause hair loss

wegovy hair loss

Many medications can contribute to hair loss, not just weight management drugs like Wegovy. Here’s a quick rundown of some common culprits:

  • Chemotherapy: Often leads to significant hair loss.
  • Heart medications: Includes beta-blockers and blood thinners.
  • Cholesterol medications: Statins are known to cause hair thinning.
  • Hormonal contraceptives: Progesterone-based pills may lead to hair loss.
  • Antidepressants: Certain types can affect hair health.
  • Anabolic steroids: Used for muscle building, can significantly impact hair.
  • Excessive vitamin A: Over-supplementation can lead to hair shedding.

What lifestyle changes can help minimize hair loss while using Wegovy?

Experiencing some hair thinning while on Wegovy? No worries—there are several lifestyle changes that can help minimize this side effect and keep your locks looking lush.

Maintain a well-balanced diet

Your hair craves a variety of nutrients to stay healthy. While cutting calories, make sure you’re not skimping on essential proteins, vitamins, and minerals like iron, zinc, selenium, folate, and vitamins C, D, and E. 

A nutrient-rich diet supports hair strength and can ward off excessive shedding.

Reduce or stop smoking

Nicotine from smoking and vaping constricts blood vessels, which can starve hair follicles of necessary oxygen and nutrients. 

Kicking this habit might not only boost your overall health but also improve your hair's thickness and vitality.

Avoid excessive sunlight

Just as your skin needs protection from UV rays, your hair does too. Overexposure to sunlight can make your hair dry and brittle, increasing the risk of breakage. 

Consider wearing a hat or using a UV-protectant spray when you're out in the sun.

Manage your stress levels

Stress is a well-known trigger for hair loss. Activities like yoga, meditation, or regular exercise can not only lower your stress levels but also improve your hair’s health. Remember, a relaxed body fosters healthier hair!

Choose gentle hair products

Harsh chemicals in some shampoos and hair dyes can contribute to hair loss, especially if your hair is already fragile. Opt for products with natural ingredients that nourish the scalp and hair, like gentle shampoos or essential oils.

Wear tight hairstyles sparingly

Tight braids, ponytails, or the use of heavy extensions can pull at your roots and potentially lead to a condition known as traction alopecia. Letting your hair loose more often allows your follicles to recover and thrive.

How to treat Wegovy hair loss

If you're facing hair loss while on Wegovy, there are several effective treatments you can consider to help regrow your hair and improve its overall health.

1. Bio-Pilixin Activation Serum

hair growth serum

Struggling with thinning hair from Wegovy? Bio-Pilixin Activation Serum might be what you need. 

Developed using advanced stem cell technology, this serum is packed with plant growth factors that nurture the hair follicles and promote hair growth. 

By stimulating blood flow, it ensures your scalp and hair are well-nourished.

Clinical tests have shown impressive results: 77% of users reported reduced hair loss within just 45 days, and 93% noticed a reduction after 150 days. 

Additionally, 73% of participants observed an increase in hair density over the same period.

Many users start seeing less hair fall during showers within a few weeks of using the serum. The scientifically backed formula has been proven effective across diverse hair types and loss patterns in both men and women aged 18 to 65.

And the best part? We're confident in our product. If you don't see the results you hope for, we offer a 150-day money-back guarantee. 

Give your hair the support it deserves and start your journey towards thicker, healthier hair with Bio-Pilixin. 

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2. Minoxidil

Minoxidil is a go-to solution for various types of hair loss, including telogen effluvium and androgenetic alopecia.

By dilating the blood vessels in your scalp, it increases blood flow, energizing the hair follicles and promoting new hair growth. It's easy to apply and works across various hair loss conditions.

3. Finasteride

Finasteride is primarily used to treat androgenetic alopecia by preventing testosterone from converting into dihydrotestosterone (DHT), a hormone that can shrink hair follicles. 

Note that Finasteride is generally not recommended for premenopausal women due to potential hormonal effects.

4. Red light therapy

Also known as low-level laser therapy (LLLT), red light therapy involves treating the scalp with beams of red or near-infrared light. 

This process boosts cell metabolism and increases energy flow to the hair follicles, fostering hair regrowth and thickness.

5. Platelet-rich-plasma therapy

PRP therapy involves drawing a small amount of your blood, processing it to enrich for platelets, and then injecting it into your scalp. 

This stimulates your hair follicles by flooding them with growth factors, enhancing hair growth and thickness.

6. Hair transplant

For those with advanced hair loss, a hair transplant can be a viable option. 

This procedure involves taking hair from a donor area on your scalp and transplanting it to thinning or bald spots. It's highly effective and can deliver natural-looking results.


While Wegovy is an effective solution for weight management, it may come with the side effect of hair loss for some users. Understanding that this is often temporary can provide some reassurance. 

If you do experience hair thinning, there are several viable treatments and lifestyle changes that can help mitigate the issue and promote hair regrowth. 

From maintaining a nutrient-rich diet to considering medical treatments like Minoxidil or even a hair transplant, you have options. 

Always consult with healthcare professionals to tailor the approach that best suits your health needs and to ensure you navigate the side effects of Wegovy effectively.


How to stop hair loss due to weight loss?

To prevent hair loss during weight loss, ensure your diet includes enough vitamins and protein. Track your calorie intake carefully and aim for gradual weight loss rather than abrupt changes. Avoid completely cutting out any major food groups, as a balanced diet is crucial for maintaining healthy hair during weight loss.

How to get thicker hair after weight loss?

For thicker hair following weight loss, consider increasing your intake of biotin, which has been linked to faster hair growth in people with thinning hair. Biotin-rich foods include eggs, milk, and bananas. If your diet doesn't naturally include these, a biotin supplement might be beneficial.

Has anyone experienced hair loss with Ozempic?

Yes, hair loss has been reported as a side effect in a small percentage of patients using weight loss drugs like Ozempic and Wegovy, as well as Tirzepatide (Mounjaro). Clinical trials indicate that between 3% and 6% of participants experienced hair loss.


Luat Duong

Luat Duong is a Copenhagen-based writer and content strategist specializing in hair loss and health. His work has been featured in MyHealthGuide, The Right Hairstyles, and Woman's Era. He is a graduate of Vaasa University. You can connect with him on LinkedIn.