GLP-1 Hair Loss: Why Wegovy May Cause Hair Shedding and What You Can Do

GLP-1 Hair Loss: Why Wegovy May Cause Hair Shedding and What You Can Do

If you’ve recently started Wegovy, Ozempic or another GLP-1 medication and have noticed more hair coming out than usual, you’re not alone.

Hair shedding can be an unexpected concern for people experiencing significant or rapid weight loss. While GLP-1 medications have become an important tool for weight management, changes in weight, nutrition and the body’s normal growth cycles can sometimes affect the hair.

So, why does hair loss happen with GLP-1 medications, and can anything be done to improve hair thickness?

In this guide, we’ll look at the relationship between GLP-1 medications and hair loss, what telogen effluvium is, and how treatments such as scalp microneedling may form part of a personalised approach to hair thinning.

Can Wegovy cause hair loss?

Hair loss or hair shedding has been reported in people taking Wegovy and other GLP-1 medications.

However, it is important to understand that the relationship is not necessarily as simple as the medication directly causing permanent hair loss.

One possible explanation is rapid or significant weight loss.

When the body experiences a major physiological change, more hairs than usual can temporarily move from the active growth phase into the resting phase. This can result in increased shedding several weeks or months later.

Changes in diet and nutritional intake during weight loss may also contribute.

This means that if you notice hair shedding after starting Wegovy, it is worth looking at the bigger picture rather than assuming the medication itself is the only cause.

What is telogen effluvium?

One common type of temporary hair shedding associated with physical or nutritional stress is called telogen effluvium.

Normally, individual hairs move through different stages of growth. When the body experiences a significant stressor, a greater number of hairs can prematurely enter the resting phase.

These hairs may then shed noticeably later.

Potential triggers can include:

• Significant or rapid weight loss

• Changes in nutrition

• Low protein intake

• Illness or physical stress

• Hormonal changes

• Psychological stress

• Certain medications

This type of shedding can be distressing, particularly when you suddenly notice more hair in your brush, shower or on your pillow.

The good news is that telogen effluvium can often be temporary, although the underlying cause should be considered and other forms of hair loss should be ruled out where appropriate.

Why does weight loss affect your hair?

Your body prioritises essential functions when it is under physiological stress.

Hair growth is not essential for survival, so significant changes in calorie intake, protein intake or nutritional status can potentially affect the hair-growth cycle.

This is particularly relevant during periods of substantial weight loss.

If you are taking a GLP-1 medication and eating considerably less than before, it is important to make sure your diet remains nutritionally adequate.

Protein is particularly important for healthy hair because hair is primarily made from a protein called keratin.

However, hair loss has many possible causes, so nutritional deficiencies should not simply be assumed to be responsible. If you are experiencing persistent or significant shedding, a professional assessment can help determine what may be contributing.

Can hair thickness be improved after GLP-1-related hair shedding?

The most important step is identifying the likely cause of the hair loss.

If shedding is related to temporary telogen effluvium, addressing the underlying trigger may allow the normal hair-growth cycle to recover over time.

For some people, additional treatments may also be considered to support scalp and hair health.

One treatment that may form part of a personalised hair-thickening programme is scalp microneedling.

What is microneedling for hair loss?

Scalp microneedling involves using very fine needles to create controlled micro-injuries in the skin of the scalp.

This stimulates a local wound-healing response and may influence growth factors and the scalp environment involved in hair growth.

Research into microneedling for certain types of hair loss is ongoing, and it is often considered as part of a broader treatment strategy rather than a standalone solution.

Microneedling is not suitable for every cause of hair loss, which is why assessment is important before treatment.

Your treatment plan should be based on the type and cause of your hair loss, your medical history and the condition of your scalp.

Should I stop Wegovy if I’m losing my hair?

If you are experiencing hair shedding after starting Wegovy or another GLP-1 medication, do not stop prescribed medication without discussing it with your prescribing clinician.

There may be several reasons for the hair loss, and stopping your medication may not address the underlying cause.

Instead, consider discussing the hair shedding with your healthcare professional and ensuring that your weight-loss approach includes adequate nutrition and appropriate monitoring.

When should you seek help for hair loss?

It is worth seeking professional advice if you notice:

• Sudden or severe hair shedding

• Noticeable thinning or widening of your parting

• Bald patches

• Scalp irritation, inflammation or pain

• Hair loss that continues or worsens

• Hair loss accompanied by other unexplained symptoms

An assessment can help distinguish between temporary shedding and other forms of hair loss that may require a different approach.

GLP-1 hair loss: the key takeaway

Experiencing hair shedding after starting Wegovy or another GLP-1 medication can be worrying, but it does not necessarily mean you are experiencing permanent hair loss.

Rapid weight loss, reduced nutritional intake and physiological changes can all influence the hair-growth cycle. In some cases, this may result in temporary shedding such as telogen effluvium.

The best approach is to identify the cause rather than simply treating the symptom.

Depending on your individual circumstances, treatments such as scalp microneedling may form part of a personalised plan to support hair thickness and scalp health.

If you have noticed increased hair shedding, thinning or reduced hair density following weight loss or starting a GLP-1 medication, professional assessment can help you understand what may be happening and what options are appropriate for you.

Concerned about hair shedding or thinning? Get in touch to arrange a consultation and discuss your individual hair and scalp concerns.

Frequently Asked Questions

Does Wegovy cause hair loss?Hair loss or hair shedding has been reported with Wegovy. Significant or rapid weight loss and changes in nutritional intake may be contributing factors, although hair loss can have many causes.

How long does GLP-1-related hair shedding last?The duration varies depending on the individual and the underlying cause. Temporary shedding can improve as the body adjusts and the hair-growth cycle returns to normal, but persistent hair loss should be assessed.

Can microneedling help with hair thinning?Microneedling may be used as part of a treatment plan for certain types of hair loss. Evidence suggests it may have a role in supporting hair growth, but results vary and it is not appropriate for every cause of hair loss.

Should I stop Wegovy because of hair loss?Speak to your prescribing healthcare professional before making changes to prescribed medication.

Can I prevent hair loss while taking a GLP-1 medication?Maintaining adequate nutrition, including sufficient protein and essential nutrients, is important during weight loss. If you notice significant shedding, seek professional advice to identify possible causes and appropriate treatment options.