

Rachel Thompson
Active· since May 29, 2026
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My friend Linda has had thick hair the whole time she's been on Mounjaro. Same drug as me. Same dose. Same amount of weight gone. I finally asked her last week what she was doing differently. Because I'd been pulling clumps out of the shower drain every morning for ten months and she walked into my kitchen looking like she hadn't lost a strand. We've known each other since our kids were in elementary school. We're both 66 now. Both on Mounjaro for a little over a year. Both lost about 40 pounds. Both happy with the weight loss. But every time we got together for coffee, I'd watch her and think — how does her hair look so good? She doesn't have it pulled back tight the way I do now. She isn't wearing one of those wide headbands I started buying. She isn't tilting her head a certain way under the kitchen light to hide her part. She just sits there with her hair down like a normal woman and drinks her coffee. I'd been too embarrassed to ask for almost a year. I'd been hiding it from her, too. The hat I'd been wearing to her house had a "fashion" reason I'd made up. The hairstyle I'd switched to was supposedly because I "wanted a change." That Tuesday she came over for coffee and I just couldn't pretend anymore. I said, "Linda, what is going on with your hair?" She smiled a little. She said, "I was wondering when you were going to ask." She knew. She'd known for months. She said it wasn't a secret. She'd been taking something one of her daughters had read about — something called L-Cystine, in a hair complex made for women on GLP-1 medications. She started taking it six weeks after she began Mounjaro, and her hair never started falling out the way mine did. She'd been on it for over a year. I wanted to be mad at her for not telling me. But I knew why she hadn't. She didn't want to be the friend who walked into my house unsolicited and pointed at my thinning hair. So she waited for me to ask. I asked her to explain it to me. She said her daughter had found an article about why GLP-1 hair loss is different from other kinds. Most hair supplements use biotin, or collagen, or those vitamins for hair, skin, and nails. None of them are built around the actual reason GLP-1s cause hair loss. The reason, the article said, is that your hair is literally made of sulfur. Every strand on your head is held together by sulfur bonds. And when your body burns fat as fast as Mounjaro forces it to, your liver burns through your sulfur reserves cleaning up the byproducts. There isn't enough left over for your hair, so your hair starts coming apart. Linda said the article explained why biotin doesn't help — biotin isn't sulfur. Why collagen doesn't help — it gets broken down before it ever reaches your hair. Why nothing on her drugstore shelf was going to work. What does work, the article said, is L-Cystine. The form of sulfur your hair is actually built from. The same form European pharmacies have been using for women losing their hair for almost 50 years. Linda showed me the bottle she keeps on her kitchen counter. Hair Priority Complex by Keravive. She'd started taking four capsules a day with breakfast, and her hair never went through what mine had been going through. She told me she'd watched two of her sisters lose their hair on Wegovy over the last year. She told both of them about the L-Cystine. One of them started taking it and her shedding slowed down within three weeks. The other one didn't believe her and is now wearing a wig. Linda doesn't usually tell people what to do. But she looked at me across the table and said, "I should have made you ask sooner." I ordered a bottle that afternoon. I want to be honest about what happened next, because I'd tried so many things by then that I almost didn't believe Linda either. The first week, nothing. Of course. Week two, maybe a little less hair on my pillow. Maybe. I'd been disappointed too many times to trust it. Week three was different. I was emptying the lint trap on my dryer and the wad of hair I'd been finding in there every load wasn't there. I went back and checked the load before. Almost nothing. I sat on the laundry room floor for a minute. Week six, my brush stopped looking like a dog had been groomed in it. By the end of the second month my part was visibly different in the bathroom mirror. Not back to normal yet — but closer than it had been in over a year. I called Linda from my bathroom. She didn't say "I told you so." She just said, "I know, honey. I know." I'm three months in now. Still on Mounjaro. Still losing weight. My hair isn't what it was before any of this started — I lost too much before I figured it out. But the shedding has stopped. My ponytail is fuller. I wore my hair down to my granddaughter's school concert last week without a hat or a clip and didn't think about it once the whole evening. If you're like I was — pulling clumps out of the drain, hiding it from your closest friends, watching some other woman walk around with full hair while you're going through what nobody talks about — please don't wait as long as I did. The thing Linda was taking is called Hair Priority Complex by Keravive. The hero ingredient is L-Cystine — sulfur in the form your hair is built from. It's designed for women on GLP-1 medications. They give you 90 days to see something change. If you don't, you get your money back. None of the things I'd tried before gave me that. I'm writing this because I should have asked Linda a year ago, and she shouldn't have had to wait for me to ask. If you have a Linda in your life and her hair has been suspiciously fine while you've been losing yours — ask her. And if you don't have a Linda — let me be her. 👉 https://keravive-us.com/products/hair-priority-complex
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