Health · Weight-loss drugs
GLP-1 users report increased hair shedding as a side effect
Experts say the popular weight-loss drugs may trigger temporary hair loss in some users
Hair loss appears in the prescribing information for both Zepbound and Wegovy.
Jump to the top 5 rankedGLP-1 weight-loss drugs like Wegovy, Ozempic, Mounjaro and Zepbound have gone mainstream. Now a growing number of users say they are finding more hair in their brush, in the shower drain and on their pillow.
The trial data backs them up. In the clinical trials behind Zepbound (tirzepatide), 4% to 5% of patients taking the drug reported hair loss, compared with 1% of patients on placebo, according to its FDA prescribing information. For Wegovy (semaglutide), the reported rate was 3%, against 1% on placebo.
Women are reporting it far more often
The gap between women and men is hard to miss. Zepbound's label says hair loss was reported by 7.1% of women taking the drug, compared with 0.5% of men. In the placebo group, the figures were 1.3% and 0%.
For many women over 50, that extra shedding lands on hair that was already thinner at the part and the crown than it used to be.
Why it happens
Doctors call this kind of shedding telogen effluvium. A shock to the body pushes many hairs into their resting phase at once, and a few months later those hairs fall out together. Rapid weight loss is one of the classic triggers. The American Academy of Dermatology lists losing 20 pounds or more among the events that can set it off.
It's normal to shed 50 to 100 hairs a day, according to the AAD. During an episode like this, the daily count climbs well above that.
From the FDA prescribing information
“Hair loss adverse reactions in ZEPBOUND-treated patients were associated with weight reduction.”
Does the hair grow back?
In most cases, yes. The AAD says hair tends to regain its normal fullness within six to nine months. Drugs.com describes GLP-1 related shedding as usually temporary, with hair recovering once weight loss stabilizes.
Don't stop or change your medication because of shedding without talking to your doctor first. If the shedding is heavy, leaves bald patches or doesn't ease after several months, see your doctor or a dermatologist.
The top 5 hair thickening brands for women in 2026, ranked
Most women don't want to spend months watching their part get wider while they wait. If you want to help your hair look fuller in the meantime, here's how five of the most talked-about brands compare.
How we ranked them: drug-free options that are easy to stick with came first. Details come from each brand's own materials or published reviews, checked in November 2026. Formulas and prices can change.
Happy Head
A telehealth brand whose custom topical formulas for women are prescribed online by board-certified dermatologists and use spironolactone or finasteride.
- Drug-free
- No
- Prescription
- Required
- Routine
- Topical, as prescribed
Why #5: it means getting a prescription online and using a drug such as spironolactone or finasteride.
Source: Happy Head press release, April 2023
Musely
A telehealth brand with prescription formulas: a topical solution (its Classic blend includes 8% minoxidil) and a daily hair pill with oral minoxidil.
- Drug-free
- No
- Prescription
- Required
- Routine
- Once a day
Why #4: strong formulas, but they're prescription drugs, including minoxidil, that you apply or take every day.
Source: Perfect Hair Health, October 2026
Hers
A telehealth brand built around minoxidil, from oral minoxidil and prescription serums to an over-the-counter 2% minoxidil solution.
- Drug-free
- No
- Prescription
- Most options
- Routine
- Daily; the 2% solution twice a day
Why #3: there's a no-prescription option, but its treatments are built around minoxidil, and the 2% solution goes on twice a day.
Source: National Council on Aging, October 2026
Nutrafol
A hair supplement brand. Its Women's Balance formula is made for women 45 and up, with botanicals including saw palmetto.
- Drug-free
- Yes
- Prescription
- Not needed
- Routine
- 4 capsules a day with a meal
Why #2: drug-free and made for women 45 and up, but it's four capsules every day, and it works from the inside rather than on the scalp.
Source: The Body Blueprint, 2026
Sleeq 4-in-1 Hair Growth Serum
A leave-in scalp serum for thinning hair, made with ginseng, rosemary, thuja leaf and biotin, and applied with a micro-roller applicator.
- Drug-free
- Yes, minoxidil-free
- Prescription
- Not needed
- Routine
- Every 1–3 days after washing
- Guarantee
- 180-day money back
Why #1: it's the only brand on our list that's drug-free, goes straight on the scalp and only needs applying every few days, and it comes with a 180-day money-back guarantee.
Source: product details, prices and guarantee from sleeqhair.com, November 2026
What customers say
“I posted a photo on Facebook and got 47 comments about my hair! My friends kept asking what I was doing differently. At 68, I finally have the confidence to wear my hair down again instead of hiding it under hats.”
“This is the only thing that worked for me post-menopause. I was starting to feel invisible… but now even my husband noticed.”
“I've tried everything NOTHING worked until this… I don't cry doing my hair anymore.”