Does Ozempic Cause Hair Loss?

If you're taking Ozempic and noticing more hair in your brush, you're not alone. Many people wonder if their weight loss medication is causing their hair to thin. Here's what the research tells us.

The Connection Between Ozempic and Hair Loss

Ozempic (semaglutide) doesn't directly cause hair loss. However, the rapid weight loss it triggers can lead to a temporary condition called telogen effluvium. This happens when your body experiences stress from losing weight quickly, pushing more hair follicles into a resting phase.

In clinical trials for Wegovy (a higher dose of the same medication), 3% of participants reported hair loss compared to 1% taking a placebo. A 2025 study found that women taking semaglutide had about double the risk of hair loss compared to men.

Why Rapid Weight Loss Affects Your Hair

When you lose weight quickly, your body goes into a kind of stress mode. It focuses energy on essential functions and puts hair growth on pause. You might also not get enough nutrients like protein, iron, and zinc when eating less, which can make hair loss worse.

Most people notice increased shedding about 3 to 6 months after starting Ozempic. This timing matches how long it takes for hair follicles to move through their natural growth cycle.

Does Mounjaro Cause Hair Loss Too?

Yes, Mounjaro (tirzepatide) can also trigger hair shedding for the same reasons. Studies show that about 5% of people taking Mounjaro reported hair loss. Women seem more affected than men, with 7.1% of women experiencing hair loss compared to just 0.5% of men in clinical trials.

The Good News: It's Usually Temporary

Hair loss from GLP-1 medications like Ozempic typically isn't permanent. Once your weight stabilizes, your hair growth usually returns to normal within 6 to 12 months. Your body simply needs time to adjust to your new weight.

How to Minimize Hair Loss

To help protect your hair while taking Ozempic, focus on eating enough protein and nutrient-rich foods. Make sure you're getting enough iron, zinc, and biotin. Losing weight gradually rather than rapidly can also reduce hair shedding. Talk to your doctor if hair loss lasts longer than 6 months or comes with other symptoms like fatigue.