No, Your Hair Isn't Falling Out Because of Semaglutide/Tirzepatide — Here's What's Really Happening

Hey PNW Medical Group Patients -

Something comes up in clinic messages to me and Jen more than you'd think: "I'm losing some hair on these medications. Should I stop?"

Let me put your mind at ease, because the answer is almost certainly not what you think.

It's not the medication — it's the weight loss.

Semaglutide and Tirzepatide don't attack hair follicles. What's happening has a medical name — telogen effluvium. It's temporary shedding that happens when your body goes through any big physical change, including rapid weight loss. Your body basically says "we've got more important things to fuel right now" and shifts hair follicles into a resting phase. Two to four months later, you see more hair in the brush.

This happens after bariatric surgery. After crash diets. After childbirth. Any significant fast weight loss — medication or not. In the semaglutide trials, hair thinning showed in about 3% of patients vs 1% on placebo, and the people who lost the most weight saw it most. Because it's the weight loss, not the drug.

The good news: it grows back. For the vast majority, it's completely reversible. Shedding usually slows within 3–6 months, with density bouncing back over 6–12 months. There's no evidence GLP-1s cause permanent hair loss.

What actually helps, from what we tell our patients:

• Protein. Your hair is literally made of it (keratin). If you're under-eating protein, your body won't prioritize growing hair. This is one more reason we push 100g+ a day minimum.

• Don't crash-diet on top of the medication. The med is already cutting your appetite — extreme restriction on top makes it worse. And you'd be surprised how many patients try fasting AND low-carb AND a GLP-1 all at once. Don't.

• Patience. Shedding that starts a few months in is your body adjusting, not something going wrong.

If it's still heavy past 6 months, talk to us — that's worth a closer look.

-Daryl

Book a FREE consult now <- Click There!

www.pnwmedicalgroup.com

Puyallup: 253-340-2270

Federal Way: 253-363-8877