If you’re using semaglutide, you might be wondering about the potential side effects, including whether it causes hair loss. After all, rapid weight loss—one of semaglutide’s most well-known effects—can be tough on the body. In this article from Genesis Lifestyle Medicine, let's discuss what you can expect while taking semaglutide, including its indirect effects on your hair and ways to keep it healthy.

Is hair loss a side effect of semaglutide? No, it isn’t

Semaglutide, an injectable medication used to treat Type 2 diabetes and aid weight loss, does not directly cause hair loss. Extensive clinical trials for semaglutide (marketed as Ozempic and Wegovy) have shown no significant reports of hair loss from participants. However, some people using semaglutide do report increased hair shedding, particularly experiencing rapid weight loss. While semaglutide itself doesn’t cause hair loss, the rapid weight loss it induces can lead to hair loss in some individuals.

How semaglutide may indirectly cause hair loss

Telogen effluvium

Semaglutide may lead to telogen effluvium, which occurs when rapid changes in the body, such as significant weight loss, push hair follicles into a resting phase. Normally, your hair grows in cycles, with different follicles being in growth, resting, and shedding phases at different times. However, during telogen effluvium, many hair follicles go into the resting phase at once, resulting in noticeable hair shedding. Telogen effluvium is not permanent, and once your body adjusts to the changes, hair growth usually resumes within a few months.

Nutrient deficiencies

Another potential cause of hair loss during rapid weight loss is nutrient deficiency. When you lose weight quickly, your body may not receive the essential vitamins and minerals it needs for healthy hair growth. Semaglutide often leads to appetite suppression, which could result in a lower intake of certain nutrients. Deficiencies in vitamins like biotin, zinc, iron, and essential fatty acids are commonly linked to hair thinning. Ensuring that your body is receiving proper nutrition while on semaglutide is critical to preventing hair.

Stress and hormonal changes

Weight loss—especially when it occurs rapidly—can be a stressor on your body. Stress is a well-known trigger for telogen effluvium, causing a significant number of hair follicles to prematurely enter the resting phase. Beyond physical stress, emotional stress associated with changes in diet, lifestyle, or weight can exacerbate hair loss. Additionally, weight loss can affect hormone levels, which may also play a role in temporary hair thinning.

How to maintain luscious hair while losing weight

Ensure a balanced, nutrient-rich diet

To maintain healthy hair while losing weight, prioritize a well-rounded diet. Even if your appetite is reduced, make sure your meals are packed with lean proteins, fruits, vegetables, and whole grains. These foods provide essential nutrients like biotin, zinc, and iron, which are critical for strong and healthy hair. If you’re concerned that you’re not getting enough nutrients, talk to your healthcare provider about supplements that can support both your health and hair growth.

Give your hair a break from heat and chemicals

Excessive styling, heat, and chemical treatments can weaken your hair. During a period of rapid weight loss, when your hair follicles may already be stressed, it's best to give your hair a break from curling irons, straighteners, and chemical treatments like perms or coloring. Allow your hair to rest and recover by opting for gentler styles that put less stress on your hair.

Stay hydrated and reduce stress

Hydration is essential for both your body and your hair. Drinking plenty of water will not only help your overall health but also keep your hair follicles moisturized and strong. Additionally, find ways to reduce stress through activities like deep breathing, yoga, or meditation. Stress can accelerate hair shedding, so managing your emotional and physical stress levels is crucial.

Choose hair care products wisely

Be cautious when selecting shampoos, conditioners, and styling products. Some products contain harsh chemicals that can damage your hair or scalp, leading to further thinning. Look for hair care products that are free from sulfates and parabens, and focus on nourishing your scalp.

Consult with your healthcare provider

If you’re experiencing significant hair loss while taking semaglutide, consult your healthcare provider. They can help confirm whether the hair loss is related to telogen effluvium or another underlying cause. Your healthcare team can also review your medications and suggest changes or supplements that might promote better hair health while continuing your weight loss journey.

Semaglutide is a powerful tool for managing Type 2 diabetes and supporting weight loss, but due to the rapid weight loss it causes, it may have some indirect effects, such as temporary hair loss. The good news is that hair loss related to weight loss is usually manageable. By taking steps to nourish your body, protect your hair, and consult with healthcare professionals at Genesis Lifestyle Medicine, you can achieve your goals without sacrificing your luscious locks.