The first non-drug clinical trial on women's hair loss just delivered the fastest results ever recorded. GLP-1s cause the same scalp aging the study reversed — here's what they found and how to get the same routine.
Dr. James Kilgour, MD
Board-Certified Dermatologist
Trained at Stanford
I watched my own mother lose her hair as her scalp aged.
She tried 11 different treatments. Minoxidil. Supplements. Shampoos. Prescriptions from specialists I personally knew. Nothing worked.
As a Stanford-trained dermatologist, I had access to everything — every treatment, every specialist, every cutting-edge therapy available. And still nothing.
That's when I started asking other doctors. Hairdressers. The pattern was the same everywhere.
Women coming in with thinning hair. Trying everything. Getting nowhere.
The problem? Every treatment targeted the follicles. But the follicles weren't the issue.
The scalp tissue was.
Your scalp ages up to 10x faster than your face. And certain triggers — like weight loss medications — can accelerate that aging dramatically.
The American Hair Loss Association has even warned that GLP-1 hair loss may be "perhaps permanent." Tissue that old can't grip follicles, can't deliver nutrients, can't support growth.
I started calling this PASS — Prematurely Aging Scalp Syndrome. And it explained why nothing worked for my mother. Why nothing worked for millions of women.
GLP-1 medications attack the same scalp tissue systems. They shrink the layer that produces local hormones, houses stem cells, and supports follicle function. The result is the same: rapidly aged scalp tissue that can't hold onto hair.
So I built a routine designed to reverse scalp aging — not just stimulate follicles.
Then I did something no other hair loss product has ever done: I tested it with pharmaceutical-level rigor.
Independent third-party lab. Not in-house. Not funded studies we could influence. An outside facility with no stake in the results. Dermatologist oversight at every single visit.
We enrolled 43 women with confirmed hair loss and scalp ages ranging from 80 to 120 years old. Ludwig grades from moderate to severe.
Women shampooed at the lab in special showers designed to capture every strand that fell. Researchers collected those hairs, dried them for 48 to 72 hours, then counted them by hand. One by one.
We separated hairs by length. Under 3cm versus over 3cm.
That distinction matters. Short hairs falling out is normal turnover. But long hairs — mature strands that have been growing for months — those are your volume. When those fall out, it means your scalp tissue is too aged to hold onto what it's producing.
Results were measured on the Ludwig Scale. The same standard the FDA uses. The same scale dermatologists have used since 1977.
No other hair loss product has ever been tested like this.
Most brands rely on surveys. Before and after photos with different lighting. Ingredient studies done on different populations.
This was the first non-drug clinical trial ever done specifically on women with confirmed hair loss from scalp aging.
Because if it didn't work under this level of scrutiny, I didn't want to sell it.
KILGOURMD TRIALS
68%
KILGOURMD TRIALS
1.0 Grade
INGREDIENT TRIALS
10,200
88% of women in our study saw results. With minoxidil, that number is around 30 to 40%.
Zero side effects. No burning, no facial hair, no dependency. Nothing that interferes with your weight loss medication.
Nutrafol doesn't have this data. Vegamour doesn't. Divi doesn't. No other hair product has ever been tested this rigorously on women with scalp aging — the same type of scalp aging GLP-1s accelerate.
Sofie, Age 61
I started losing my hair about three months after starting my weight loss medication. I'd tried everything — Nutrafol, Vegamour, biotin gummies. Nothing slowed it down. My doctor said it was just a side effect I had to accept.
Week 8, my hairdresser pulled me aside. Asked what I was doing differently. Said my hair felt thicker at the root. I hadn't even noticed yet. But her hands did. By month 4, my part had visibly narrowed.
I'm still on my medication and my hair is finally growing back.
Mariam Taraz
Hairdresser for 15 years
I've been a hairdresser for 15 years. I own Extensions By MT in Los Angeles. I've recommended every product on the market to my clients. Nutrafol, Vegamour, minoxidil, biotin — I tried them all myself too. Nothing worked.
I even got a hair transplant.
Nearly $10,000. It was working at Day 120. I finally felt like myself again.
Then by Day 180, it all fell out. Almost back to where I started. Nearly $10,000 gone just like that.
When I learned about scalp aging, it finally made sense. My scalp was too old to hold onto hair — even transplanted follicles. That's when I found KilgourMD. Below are my month three results.
Look at the difference. Starting stage — you could see straight through to my scalp. Month three — actual coverage. Density I haven't had in years.
I recommend this to every client over 40 now. I wish I found it before I spent thousands on a transplant that was never going to last.
Susan, Age 54
Three months ago I couldn't even lift my hair up without seeing scalp everywhere. I started losing it a few months after starting Ozempic. Now look at it — I'm showing it off. There's actual thickness when I grab it. I haven't been able to do this in years.
Liv Wilcox
Hairdresser for 3 years
I've been doing hair for 3 years. The number of clients coming in panicked about hair loss from their weight loss shots has exploded. They're losing weight, feeling great, then suddenly their hair is everywhere — the drain, the brush, the bathroom floor.
I started recommending this after I saw the clinical data. By week 6, I can feel it before they even notice. Thickness at the root. The shedding slowing down. They can stay on their medication without sacrificing their hair.
Starting stage — see how wide that part is? I couldn't style around it. No amount of teasing or product could hide it. Month three — actual coverage. I can work with this now. The part sits natural, the hair holds volume, it moves the way it's supposed to.
By week 6, I can feel it in my chair before they even notice. Thickness at the root. Less hair coming out when I run my fingers through. That's when I know it's working.
Stanford-Trained Dermatologist • Clinicians' Choice
★★★★★ 4.8/5 by 150,000+ women
Clinically proven to reverse the scalp aging GLP-1s accelerate. 43 women. Independent lab. Every hair counted by hand.
HSA/FSA Eligible
Our studies showed 10,200+ new hairs in 12 weeks. That's transplant-level results — which is why I give you 90 days to see them yourself. Use both serums nightly for the full 90 days. If you don't see real regrowth, full refund. This is why we recommend the 3 or 6-month bundles — you need the complete timeline to reverse scalp aging and watch your hair transform.
Common Questions
Whether you're on Ozempic, Wegovy, Mounjaro, or any other GLP-1 agonist, this system is designed to address the metabolic shock and scalp aging that all rapid weight loss causes. The mechanism is the same regardless of which specific medication you're taking. With natural, drug-free ingredients and advanced liposomal delivery, it's safe and effective for daily use. As always, if you have a diagnosed medical condition or are taking medication, consult your physician before use.
Supplements like biotin, collagen, and iron target hair nutrition — but GLP-1 hair loss isn't a nutrition problem. It's a scalp aging problem. When your scalp tissue ages prematurely, it can't hold onto follicles regardless of how many vitamins you take. KilgourMD targets the scalp tissue itself, reversing the aging that causes follicle loss.
Genetics play a role in baseline scalp aging speed, but GLP-1 medications dramatically accelerate the process beyond what genetics alone would cause. Women who never had hair loss before starting their medication are experiencing it because the drugs trigger rapid scalp tissue aging. The clinical trial specifically enrolled women with confirmed accelerated scalp aging — and 88% saw results.
The clinical trial that produced 10,200 new hairs in 84 days used both serums together. The Prevention Serum protects existing follicles and reduces shedding. The Treatment Serum reactivates dormant follicles and stimulates new growth. They work on different biological pathways — using only one gives you only half the protocol.
Yes. The clinical trial included women across all hair types and textures. The liposomal delivery system penetrates the scalp tissue regardless of hair type, texture, or density. The actives target the scalp — not the hair strand — so hair type is not a limiting factor.
The underlying scalp aging process is ongoing — especially while on GLP-1 medications. Most women continue using the serums as part of their nightly routine. The 50-second application becomes a habit. If you stop, the scalp aging resumes and shedding may return over time.
The clinical trial included women with Ludwig grades from moderate to severe — some with scalp ages of 120 years old. Even women with significant hair loss saw meaningful improvement. The key is whether dormant follicles remain in the scalp tissue. As long as follicles are present (even dormant), they can potentially be reactivated.
Use both serums nightly for the full 90 days. If you don't see real regrowth, contact us for a full refund. The 90-day timeline matches the clinical trial protocol — giving your scalp tissue enough time to reverse aging and produce visible new growth. This is why we recommend the 3 or 6-month bundles.
Dr. James Kilgour is a board-certified dermatologist trained at Stanford University. His credentials, research publications, and clinical background are available on the KilgourMD website and can be independently verified through medical board records.
This is the same application method that delivered 68% less shedding and one full Ludwig grade improvement. 50 seconds a day. Won't weigh your hair down, won't affect styling, safe for color-treated hair.
Step 1: Apply to Damp or Dry Hair
The serums work on both damp and dry hair because of how they're formulated. The active ingredients use a liposomal delivery system that penetrates your scalp tissue regardless of moisture level. The key is getting the serum directly onto your scalp tissue, not your hair strands. Important: Avoid applying to soaking wet hair. Excess water dilutes the serums and prevents proper absorption.
Step 2: Part Your Hair in Sections
Don't apply serum on top of your hair. Actually part your hair in sections and apply the serum directly to the scalp tissue. Use 1-2 dropperfuls and create 2-4 parts across your scalp, focusing on areas where you want more growth.
Step 3: Massage for at Least One Minute
After applying the serum, massage it into your scalp for at least 60 seconds using gentle circular motions with your fingertips. This stimulates blood flow to your follicles and helps the active ingredients absorb deeper into the scalp tissue. Women who massage consistently see results faster.
Step 4: Use Both Serums at Night
Apply both the Prevention and Treatment serums in the evening, ideally right before bed. Why? Your scalp repairs itself during sleep. Blood flow increases. Cell regeneration peaks between 10pm-4am. Plus, the serums have 6-8 hours to absorb without interference from styling products, sweat, or washing.
The Prevention Serum (Protect + Maintain): A scientifically advanced complex that reduces inflammation by 48% while increasing hair density by 79% in just 4 months. This powerful ingredient combines red clover extract rich in Biochanin A (a natural DHT blocker) with acetyl tetrapeptide-3, a biomimetic peptide that strengthens hair anchoring at the root. Clinical studies show it outperforms minoxidil by 81% while being completely natural and side-effect free.
The Treatment Serum (Restore + Strengthen): The breakthrough ingredient that increased hair growth by 214% in clinical studies. This patented molecule contains two key molecules that work together to reactivate dormant stem cells in hair follicles, essentially "waking up" sleeping follicles that have gone quiet. In studies, it performed 2x better than minoxidil at stimulating growth — without any of the side effects.
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