| Valley Forge Weight Management Center



Does Tirzepatide Cause Hair Loss? Examining the Evidence

As its popularity grows, so do questions about its potential side effects. One concern that has emerged is whether tirzepatide might cause hair loss. In this article, we'll examine the available evidence to answer this question.
does tirzepatide cause hair loss

Table of Contents

Tirzepatide, sold under the brand name Mounjaro, is a novel medication that has been making waves in the medical community for its impressive efficacy in treating type 2 diabetes and promoting weight loss. As its popularity grows, so do questions about its potential side effects. One concern that has emerged is whether tirzepatide might cause hair loss. In this article, we’ll examine the available evidence to answer this question.

Does Tirzepatide Cause Hair Loss?

Understanding Tirzepatide First, let’s understand what tirzepatide is. Approved by the FDA in May 2022, it’s a dual glucose-dependent insulinotropic polypeptide (GIP) and glucagon-like peptide-1 (GLP-1) receptor agonist1 . This unique mechanism of action helps regulate blood sugar levels and reduces appetite, making it effective for both diabetes management and weight loss2.

Hair Loss: A Common Concern

Hair loss is a frequent worry when starting new medications. It’s a side effect associated with various drugs, including those for high blood pressure, arthritis, and depression3 . Given tirzepatide’s rapid rise in popularity, it’s natural for users to be vigilant about potential side effects.

Clinical Trial Data

The primary source for understanding a drug’s side effects is its clinical trial data. In the case of tirzepatide, we have several robust studies to draw from:

  1. SURPASS Clinical Program: This series of phase 3 trials evaluated tirzepatide’s safety and efficacy in over 5,000 adults with type 2 diabetes. Notably, hair loss was not listed among the common side effects, which included nausea, diarrhea, vomiting, and constipation4.
  2. SURMOUNT-1 Trial: This study focused on tirzepatide’s effects on obesity in non-diabetic adults. Again, hair loss was not reported as a significant side effect5.
  3. FDA Prescribing Information: The official label for Mounjaro, approved by the FDA, does not mention hair loss as a side effect6.

The Relationship Between Weight Loss and Hair Loss.

While tirzepatide itself doesn’t appear to directly cause hair loss, there’s another factor to consider: rapid weight loss. Tirzepatide is known for its dramatic weight loss effects, with some patients losing up to 22.5% of their body weight in the SURMOUNT-1 trial.

Significant weight loss, regardless of the method, can sometimes trigger a type of hair loss called telogen effluvium. This condition occurs when physical or emotional stress pushes hair follicles into a resting phase, leading to temporary shedding7 . It’s been observed with various weight loss methods, including bariatric surgery and very low-calorie diets8.

Nutritional Factors

Another indirect way tirzepatide might affect hair health is through changes in nutrition. As patients lose weight rapidly, they may consume fewer calories, potentially leading to deficiencies in nutrients crucial for hair health, such as protein, iron, zinc, and B vitamins9. It’s important for anyone on a weight loss regimen to ensure they’re getting adequate nutrition.

Vitamins & Supplements

Get suitable vitamins and supplements.

Anecdotal Reports

While clinical trials haven’t shown a direct link between tirzepatide and hair loss, some users in online forums and social media groups have reported hair thinning or shedding. However, these anecdotal reports, while worth noting, don’t carry the same weight as systematic clinical data. They can be influenced by various factors, including pre-existing conditions, other medications, stress, and the weight loss effect we’ve discussed10.


Based on the current evidence from clinical trials and FDA documentation, there’s no direct indication that tirzepatide (Mounjaro) causes hair loss as a side effect. However, the significant weight loss it induces could potentially lead to temporary hair shedding, a phenomenon known as telogen effluvium.

If you’re using tirzepatide and experiencing hair loss, consider these steps:

  1. Consult your doctor to rule out other causes.
  2. Ensure you’re getting adequate nutrition, particularly protein and key vitamins.
  3. Be patient—if the hair loss is due to rapid weight loss, it’s likely temporary.
  4. Discuss your concerns with your healthcare provider; they might adjust your treatment plan if needed.

Remember, while hair health is important, it shouldn’t overshadow the substantial benefits tirzepatide can offer in managing diabetes and obesity. Always weigh the risks and benefits with your healthcare provider when considering any new medication.


  1. U.S. Food and Drug Administration. (2022). FDA approves novel, dual-targeted treatment for type 2 diabetes. ↩︎
  2. Frías, J. P., et al. (2021). Tirzepatide versus Semaglutide Once Weekly in Patients with Type 2 Diabetes. New England Journal of Medicine, 385(6), 503-515. ↩︎
  3. American Academy of Dermatology. (n.d.). Hair loss: Who gets and causes. ↩︎
  4. Eli Lilly and Company. (2023). SURPASS Clinical Trial Program. ↩︎
  5. Jastreboff, A. M., et al. (2022). Tirzepatide Once Weekly for the Treatment of Obesity. New England Journal of Medicine, 387(3), 205-216. ↩︎
  6. U.S. Food and Drug Administration. (2022). Mounjaro (tirzepatide) injection Prescribing Information. ↩︎
  7. Alotaibi, Moteb Khalaf. “Telogen effluvium: a review.” Int. J. Med. Dev. Cties 3 (2019): 797-801. ↩︎
  8. Ruiz-Tovar J, Oller I, Llavero C, Zubiaga L, Diez M, Arroyo A, Calero A, Calpena R. Hair loss in females after sleeve gastrectomy: predictive value of serum zinc and iron levels. Am Surg. 2014 May;80(5):466-71. PMID: 24887725. ↩︎
  9. Guo EL, Katta R. Diet and hair loss: effects of nutrient deficiency and supplement use. Dermatol Pract Concept. 2017;7(1):1-10. Published 2017 Jan 31. doi:10.5826/dpc.0701a01 ↩︎
  10. Note: Anecdotal reports are from various online health forums and social media groups. As these are personal experiences and not verified data, they aren’t cited as formal references. ↩︎


especially for you 🎁

Sign up to receive your exclusive discount, and keep up to date on our latest products & offers!

We don’t spam! Read our privacy policy for more info.

share this Article:

stress and weight gain

Mind-Body Connection: Sleep, Stress and Weight Gain

When it comes to weight loss, we often overlook the powerful connection between our minds and bodies. There is a direct correlation between sleep, stress, and weight gain. Stress and poor sleep can sabotage even the most diligent efforts, making it challenging to achieve sustainable results. In this article, we’ll explore the intricate relationship between sleep, stress, and weight gain and provide holistic solutions to help you regain control and reach your goals.

Read More
Skip to content