90-Day Guarantee On All Orders
4.8 ★★★★★ (2,847 reviews)

KilgourMD Prevention Serum
Stop GLP-1 Hair Loss In 6 Weeks

You don’t have to choose between your weight loss and your hair. Dr. James Kilgour built this for women exactly like you — and tens of thousands on Ozempic, Wegovy, Mounjaro and Zepbound are already using it to keep both.

  • 68% less wash-day shedding
  • 60% less hair in the brush
  • 95% shedding less in 6 weeks
Non-HormonalNo MinoxidilLightweight & Non-Greasy

A thank-you for our readers.

28% off the exact protocol that stops GLP-1 shedding. Available until the study publication batch runs out.

Order now for delivery by
TOPRESPONDER10 Discount Code Applied You’re saving an extra $0.00. Total savings: $0.00
Free Returns 🇺🇸 Made in The USA 500K+ Serums Sold 2–5 Day Shipping
90-Day Money-Back Guarantee Your order is protected by a full money-back guarantee. If you don’t see less shedding and thicker, fuller hair within 90 days, we’ll refund every penny — no bottles to return, no questions asked.
  • 30-Day Supply · $75 / month

    You pay $75 and we ship a 30-day supply of the Prevention Serum within 24 hours. Every 30 days, your next bottle renews automatically at the same $75 rate. Save 15% vs. one-time pricing.

    90-Day Supply · $64 / month

    You pay $192 upfront and we ship all 3 months together within 24 hours. Every 3 months, your next shipment renews automatically at the same $192 rate — the lowest price we offer. Save 28% vs. one-time pricing.

    Cancel · Pause · Refund

    Cancel or pause anytime — one click in your customer portal or a quick email. No phone calls. No “retention specialists.” No hoops. You hit cancel, it’s done. Refund hits your account within 3–5 business days. That’s it.

    Both options include free priority shipping on every order, and access to Dr. Kilgour’s protocol support team if you have questions about your routine.

  • You can cancel anytime, right from our website. No phone call, no waiting on support.

    And there’s no password to remember. Just enter your email and we’ll send you a link to log in. Tap the link and you’re in.

    Here’s how:

    1. Go to kilgourmd.com.
    2. Click “My Account” at the top right (next to the cart icon), or scroll to the bottom of the page and click “Manage Subscription.”
    3. Enter the email you used for your order.
    4. Once you’re in, click cancel. Done.

    Not sure which email you used? Open any order confirmation email from us. There’s a link inside that takes you straight to your account — every time, no login needed.

  • Nothing in the Prevention Serum comes from animals, and nothing, not the serum or any single ingredient, is ever tested on them.

    It’s safe around them, too. Minoxidil is toxic to cats — and not just if they lick the bottle. Residue on your hands, your pillowcase, the towel you used — a cat that curls up where you slept and grooms itself can get enough to make it seriously ill, sometimes fatally. The Prevention Serum carries none of that risk. You can keep it on the counter and never worry about your cat or dog.

    Beauty and wellness should never come at a cost — to you, or to the animals you love.

  • Marie Claire Best Medical-Grade Scalp Solution 2024
    Marie Claire 2024 — Best Medical-Grade Scalp Solution

    Winner of Marie Claire’s annual Beauty Awards — judged by editors and dermatologists. The “medical-grade” category specifically recognizes products with clinical backing.

    Elite Best Scalp Care Serums 2024
    Elite Lifestyle Magazine — Best Scalp Care Serums, 2024

    Winner of the 2024 ELITE Beauty Award for Best Scalp Care Serums in the Scalp Care & Hair Growth category. Elite’s panel tested products for months and selected winners based on quality, innovation, and how well they deliver on their promises. KilgourMD was the only scalp serum recognized for outperforming minoxidil in clinical trials with zero side effects.

    FSA / HSA Eligible
    FSA/HSA Eligible

    This serum is FSA and HSA eligible — meaning you can use pre-tax health dollars to pay for it. Most hair growth products on the market can’t clear this bar. They’re classified as cosmetic. To qualify for FSA/HSA, a product has to meet a higher standard — it has to be positioned and classified as a health expense, not a beauty purchase.

  • Free shipping on every order. Most orders ship same day and arrive within 3–5 business days.

    If you’re not seeing results after 90 days of consistent use, we’ll refund you. No questions, no hassle, you don’t even need to send the bottle back.

    Cancel or pause your subscription anytime — no fees, no hoops. Just log into your account or email our team.

  • Apply one dropperful to your scalp before bed. Part your hair in 2–3 sections and apply directly to the scalp — not your hair. Massage for 30 seconds. That’s it.

    Your scalp repairs itself during sleep. Blood flow increases, cell regeneration peaks. The serum works with that cycle overnight.

As Seen In
As reported by BioSpaceAs reported by MedPathPubMed listing

See Your Recovery Timeline

Five quick questions. See how fast your hair can come back once you start — and unlock a surprise.

Good news — your hair can come back.

Based on your answers, your follicles are resting, not gone. The shedding is reversible — and here’s the exact timeline once you start today.

Your Top Responder Reward
An extra 10% off every plan — auto-applied to your order.

You matched our trial’s Top Responder profile. Drop your email to lock it in and start your timeline today.

✓ TOPRESPONDER applied — an extra 10% off every plan.
Free shipping · 90-day money-back guarantee
The Science

You don’t have to quit your shot to keep your hair.

GLP-1 hair loss isn’t permanent, and it isn’t a mystery. It comes down to two signals at the root — and a GLP-1 knocking both the wrong way. Here’s exactly what’s happening, and why it’s fixable without ever touching your medication.

Two signals run your hair — FGF-7 says grow, BMP says rest. A GLP-1 turns grow down and rest up, so a batch of healthy hairs flips into shedding at once. That’s the clump in the shower.

Left alone, the flip feeds itself — less growing, more shedding, month after month. A follicle left resting too long slips toward the lasting kind of loss.

Flip it back: grow signal up, sleep signal down. The follicle wakes and holds again — no hormones, no quitting your shot.

WHAT A GLP-1 DOES
Your hair runs on two signals — one telling it to grow (FGF-7), one telling it to rest (BMP). A GLP-1 turns the grow signal down and the sleep signal up. The deep calorie deficit does the same. So a batch of healthy, growing hairs gets flipped into shedding — all at once. That’s the clump in the shower.
No Side Effects No Prescription Built For GLP-1 Users 90-Day Guarantee
The Prevention Serum

What’s In Your Order

One serum. Five compounds. 30 seconds, once a night, before bed. No drug interactions. Stay on your full dose.

Ingredients

When a GLP-1 shuts the grow signal down, follicles quit early and drop hair before their time. AnaGain, a pea-sprout active, pushes the root to send 56% more of the growth factors that tell a follicle to build — and raises Noggin 85%, shutting off the “stay asleep” signal a GLP-1 leaves stuck on. Together, that nearly doubles how many follicles are actively growing.

What you’ll see, based on studiesMore of your hair back in the growing phase.

From red clover. It rebuilds the root that anchors each strand and feeds the follicle, so hair holds its growth phase longer instead of letting go early — improving the growing-to-shedding ratio by 46%, and bringing new hair in up to 35% longer and thicker.

What you’ll see, based on studiesFuller, longer new growth.

As the grow signal drops, the follicle loosens its grip and healthy hairs start sliding out at the root. Procapil reinforces the anchoring proteins at the base of the follicle — the exact grip a GLP-1 loosens — cutting hair fall by up to 46%, so the strands you still have stop letting go early.

What you’ll see, based on studiesLess hair in your brush and drain by week 6.

A basil-root extract that quiets the follicle and wakes up the dermal papilla — the engine that drives growth — cutting shedding by 31% in two months, with no hormones and no side effects.

What you’ll see, based on studiesLess shedding within the first weeks.

The follicle can’t build a strong strand without it. Vitamin C supports the collagen the root is anchored in, and shields the follicle from the oxidative stress that comes with rapid weight loss — so the recovery holds.

What you’ll see, based on studiesA protected root while it rebuilds.
Apply at night on a clean scalp. 30 seconds, once a day. Compatible with Ozempic, Wegovy, Mounjaro, Zepbound, and all other GLP-1 medications.
Based On Research From
Shedding beforeBefore
Shedding afterAfter
New hairs beforeBefore
New hairs afterAfter
Hair density beforeBefore
Hair density afterAfter
Part line · Week 0 → Week 12
KilgourMD Prevention Serum
0
reported side effects
Minoxidil
20+
reported side effects
The 7 minoxidil side effects women report most often:
  1. 1Scalp irritation, burning, and itching — reported by up to 38% of users
  2. 2Unwanted facial hair growth — especially on cheeks, forehead, and upper lip
  3. 33-month “shedding phase” — increased hair loss for the first 90 days before any regrowth
  4. 4Dizziness and lightheadedness — from systemic absorption into the bloodstream
  5. 5Heart palpitations and chest tightness — in women with mild cardiovascular sensitivity
  6. 6Swelling in hands, feet, or face — fluid retention from vasodilation
  7. 7Dependency — hair grown on minoxidil falls out when you stop using it

Source: FDA adverse event database + published minoxidil clinical literature

Dermaclaim

95% Of Women Were Shedding Less In 6 Weeks

The Prevention Serum was tested in a peer-reviewed trial run by independent dermatologists, on women losing hair the same way a GLP-1 takes it. Every hair was counted by hand, in the shower and in the brush, before and after. Here’s what they found.

Tap each result to see the proofClick each result to see the proof

A 68% drop in shedding — measured in a clinical sink, two consecutive washes, every released strand counted by hand. Not estimated. Not self-reported. Counted.

Wash test beforeBefore
Wash test afterAfter

Based on ingredient studies. The pea-sprout active in the formula (AnaGain) improved the growing-to-shedding ratio by 78% in three months — nearly doubling how much of your hair is actively growing instead of falling.

Brush test beforeBefore
Brush test afterAfter

Zero women reported side effects. Zero dropouts. The Prevention Serum is non-hormonal, drug-free, and has no drug interactions with any GLP-1 medication — unlike minoxidil.

Minoxidil starts with a dread shed — weeks of worse falling before anything improves, because it shocks every follicle out of rest at once. The Prevention Serum does the opposite: less hair on the floor from day one, while the new growth builds underneath.

KilgourMD Prevention Serum
0
reported side effects
Minoxidil
20+
reported side effects
The 7 minoxidil side effects women report most often:
  1. 1Scalp irritation, burning, and itching — reported by up to 38% of users
  2. 2Unwanted facial hair growth — especially on cheeks, forehead, and upper lip
  3. 33-month “shedding phase” — increased hair loss for the first 90 days before any regrowth
  4. 4Dizziness and lightheadedness — from systemic absorption into the bloodstream
  5. 5Heart palpitations and chest tightness — in women with mild cardiovascular sensitivity
  6. 6Swelling in hands, feet, or face — fluid retention from vasodilation
  7. 7Dependency — hair grown on minoxidil falls out when you stop using it

Source: FDA adverse event database + published minoxidil clinical literature

*Individual results may vary. The Prevention Serum is topical and does not interact with GLP-1 medications. If dissatisfied with the results, please reach out within 90 days of use for a full, no-questions refund. The Journal of Drugs in Dermatology accepted the trial for publication in their June 2026 issue.

FrontRowMD Verified

Recommended By 1,000+ Doctors

It’s not just tested in a lab — it’s what real doctors hand their own patients.

Through FrontRowMD, more than 1,000 doctors across the U.S. recommend the KilgourMD serum to the women in their own practices. When a dermatologist can reach for anything and chooses this for her patients, that tells you more than any ad could.

1,000+ doctors200,000+ women using it daily

GLP-1 Hair Recovery Stories From Our Customers ❤️

Patricia, 57
Verified Customer

Okay I don’t normally do this but I have to share because I know so many of you are going through the exact same thing. That first photo is me and my husband in Paris a few years back — right before I started my shots. I’d been wanting to lose the weight for years, and it was finally happening. My hair? Thick, full. Didn’t think twice about it.

Then a few months into the GLP-1 it started. The second photo is what I’d pull out of my hair in the shower — every single wash, a handful like that. And the worst part was the top of my head, you can see in the photo how you could see right through to my scalp at the part. I stopped parting it in the middle. I started wearing it up so people wouldn’t notice from above. I cried in the car more than once. I honestly thought about quitting the medication over it — but I’d worked so hard for the weight.

I tried a few things — a couple of shampoos everyone swears by, more protein, a supplement my sister sent me. Nothing touched it. I genuinely thought I had to pick: my weight or my hair.

The third photo is me last week. I’ve been using the prevention serum (the scalp one) every night, takes me 30 seconds, and I never came off my medication. The shedding stopped first — that was the thing that made me cry happy tears, not finding it all over the shower anymore. And then it just slowly came back. My part filled in. It feels like MY hair again.

I’m 57. If you’re sitting there thinking you have to choose between your weight loss and your hair — that’s exactly what I thought. You don’t. Please don’t wait as long as I did. 💛

Diane, 61
Verified Customer

I debated sharing the “before” for a long time — it’s hard for me to look at. But if it stops one woman from waiting the way I did, fine.

Mine came from the GLP-1. I blamed myself for years, thought it was my protein, thought I was doing something wrong. It wasn’t. A few months in, my temples started receding — the kind of thing you catch in a shop window and don’t recognize. I stopped wearing my hair back. For two years.

Biotin, collagen, two shampoos that promised everything. I thought the only way to stop it was to quit the medication, and I wasn’t willing to give up what it’s done for my health.

Second photo is four months in, still on my meds. The temples are filling back. Not all the way — I won’t pretend — but it’s coming back. I can pull my hair off my face again.

Margaret
Verified Customer

That’s my hairbrush. Both photos, same brush. Started Mounjaro last year, loved the weight loss, then the shedding hit and nobody warned me. Grey wad in the brush every wash. Lint roller in three rooms, not kidding.

Figured I had to choose — the meds or my hair. Tried a supplement, more protein. Nothing.

Second brush is six weeks on the scalp serum. Stayed on my Mounjaro the whole time. Stood at the sink staring at an empty brush like a weirdo.

You don’t have to choose. That’s it. That’s the post.

90-Day Money-Back Guarantee

Visible Results In 90 Days Or Your Money Back

Use the Prevention Serum every night for 90 days. Don’t see less shedding and a fuller ponytail? You get every dollar back. Less than 3% of our customers ever claim it.

Clinical Comparison

Why Women On GLP-1s Choose Prevention Over The Two Most Common Alternatives

Most women on GLP-1s consider two options when the shedding starts. Quitting the medication. Stockpiling supplements. Here’s how Prevention compares.

 
KilgourMD Prevention Serum
Quitting The Medication
Shedding stops by
Week 6
12–24 months, if it stops at all
Keep your weight loss
Yes
No — most women gain back two-thirds within a year
Side effects
None reported
The weight comes back, mood swings, blood sugar all over the place
Does the shedding even stop?
Yes
No — the signal doesn’t come back on its own, so the shedding keeps going for months after you quit
Works with your GLP-1
Yes

Quitting doesn’t save your hair.

The signal is already down — so the shedding keeps going for a year or more after you stop, and the weight you worked for comes back too. You lose both.

No Side Effects No Prescription Built For GLP-1 Users 90-Day Guarantee
4.8 ★★★★★ (2,847 reviews)

KilgourMD Prevention Serum
Stop GLP-1 Hair Loss In 6 Weeks

You don’t have to choose between your weight loss and your hair. Dr. James Kilgour built this for women exactly like you — and tens of thousands on Ozempic, Wegovy, Mounjaro and Zepbound are already using it to keep both.

  • 68% less wash-day shedding
  • 60% less hair in the brush
  • 95% shedding less in 6 weeks
Non-HormonalNo MinoxidilLightweight & Non-Greasy

A thank-you for our readers.

28% off the exact protocol that stops GLP-1 shedding. Available until the study publication batch runs out.

Order now for delivery by
TOPRESPONDER10 Discount Code Applied You’re saving an extra $0.00. Total savings: $0.00
Free Returns 🇺🇸 Made in The USA 500K+ Serums Sold 2–5 Day Shipping
90-Day Money-Back Guarantee Your order is protected by a full money-back guarantee. If you don’t see less shedding and thicker, fuller hair within 90 days, we’ll refund every penny — no bottles to return, no questions asked.
  • 30-Day Supply · $75 / month

    You pay $75 and we ship a 30-day supply of the Prevention Serum within 24 hours. Every 30 days, your next bottle renews automatically at the same $75 rate. Save 15% vs. one-time pricing.

    90-Day Supply · $64 / month

    You pay $192 upfront and we ship all 3 months together within 24 hours. Every 3 months, your next shipment renews automatically at the same $192 rate — the lowest price we offer. Save 28% vs. one-time pricing.

    Cancel · Pause · Refund

    Cancel or pause anytime — one click in your customer portal or a quick email. No phone calls. No “retention specialists.” No hoops. You hit cancel, it’s done. Refund hits your account within 3–5 business days. That’s it.

    Both options include free priority shipping on every order, and access to Dr. Kilgour’s protocol support team if you have questions about your routine.

  • You can cancel anytime, right from our website. No phone call, no waiting on support.

    And there’s no password to remember. Just enter your email and we’ll send you a link to log in. Tap the link and you’re in.

    Here’s how:

    1. Go to kilgourmd.com.
    2. Click “My Account” at the top right (next to the cart icon), or scroll to the bottom of the page and click “Manage Subscription.”
    3. Enter the email you used for your order.
    4. Once you’re in, click cancel. Done.

    Not sure which email you used? Open any order confirmation email from us. There’s a link inside that takes you straight to your account — every time, no login needed.

  • Nothing in the Prevention Serum comes from animals, and nothing, not the serum or any single ingredient, is ever tested on them.

    It’s safe around them, too. Minoxidil is toxic to cats — and not just if they lick the bottle. Residue on your hands, your pillowcase, the towel you used — a cat that curls up where you slept and grooms itself can get enough to make it seriously ill, sometimes fatally. The Prevention Serum carries none of that risk. You can keep it on the counter and never worry about your cat or dog.

    Beauty and wellness should never come at a cost — to you, or to the animals you love.

  • Marie Claire Best Medical-Grade Scalp Solution 2024
    Marie Claire 2024 — Best Medical-Grade Scalp Solution

    Winner of Marie Claire’s annual Beauty Awards — judged by editors and dermatologists. The “medical-grade” category specifically recognizes products with clinical backing.

    Elite Best Scalp Care Serums 2024
    Elite Lifestyle Magazine — Best Scalp Care Serums, 2024

    Winner of the 2024 ELITE Beauty Award for Best Scalp Care Serums in the Scalp Care & Hair Growth category. Elite’s panel tested products for months and selected winners based on quality, innovation, and how well they deliver on their promises. KilgourMD was the only scalp serum recognized for outperforming minoxidil in clinical trials with zero side effects.

    FSA / HSA Eligible
    FSA/HSA Eligible

    This serum is FSA and HSA eligible — meaning you can use pre-tax health dollars to pay for it. Most hair growth products on the market can’t clear this bar. They’re classified as cosmetic. To qualify for FSA/HSA, a product has to meet a higher standard — it has to be positioned and classified as a health expense, not a beauty purchase.

  • Free shipping on every order. Most orders ship same day and arrive within 3–5 business days.

    If you’re not seeing results after 90 days of consistent use, we’ll refund you. No questions, no hassle, you don’t even need to send the bottle back.

    Cancel or pause your subscription anytime — no fees, no hoops. Just log into your account or email our team.

  • Apply one dropperful to your scalp before bed. Part your hair in 2–3 sections and apply directly to the scalp — not your hair. Massage for 30 seconds. That’s it.

    Your scalp repairs itself during sleep. Blood flow increases, cell regeneration peaks. The serum works with that cycle overnight.

No Side Effects No Prescription Built For GLP-1 Users 90-Day Guarantee
Common Questions

Frequently Asked Questions

A Personal Guarantee

A Personal Guarantee From Dr. Kilgour

“Here’s my promise to you.

You don’t have to choose between your weight loss and your hair. Use the Prevention Serum for 90 days while you stay on your medication. If your shedding hasn’t visibly slowed — if the wash-day handful hasn’t shrunk — one email and you get every penny back. Keep the bottles. No forms, no questions, no proof to send.

I can promise this because I’ve watched it work for tens of thousands of women on GLP-1s. Fewer than 3% ever ask for a refund.

The real risk isn’t the serum. It’s another six months of the signal staying down while you wait — or quitting your medication, losing the progress you fought for, and finding the shedding doesn’t stop anyway.”

Dr. James Kilgour signature
Dr. James Kilgour, MD, FAAD
Board-Certified Dermatologist · Founder, KilgourMD
Start Today — Save 28%

90-Day Money-Back Guarantee · Compatible With All GLP-1 Medications

Oxford
Academic Foundation Programme in Dermatology, University of Oxford
Stanford
Dermatology Residency + Postdoctoral Fellowship in Topical Drug Development
Board-Certified
American Board of Dermatology · Fellow, American Academy of Dermatology
Published Researcher
JAMA Dermatology · JAAD · Journal of Investigative Dermatology · British Journal of Dermatology
700,000+ serums shipped
95% shedding less in 6 weeks
0 drug interactions reported with any GLP-1
KilgourMD Prevention SerumStop GLP-1 Hair Loss In 6 Weeks