Founding 500 — fewer than 100 spots remaining · $49/mo locked for life · Ships August 2026
★★★★★ 4.7 · 1,847+ founding reservations
For women on GLP-1 medications

Your hair's Recovery Window is closing.
Here's how to use the next 90 days.

The first GLP-1 specific protocol — built around the 90-day window when your shedding follicles are still recoverable. One capsule daily. Designed by an endocrinologist.

Reduce GLP-1 hair shedding
Recover thinning at the part
Bisglycinate iron + methylated B's
DHT support (saw palmetto)
One capsule daily
60-day money-back guarantee
Dr. Lauren Matthews, MD
"After tracking 800+ patients on GLP-1s in my endocrinology practice, I built Keravex around one specific window — and what we put in your body during it." — Dr. Lauren Matthews, MD · Endocrinologist
🎁
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Quick answers before you scroll

The four questions everyone asks

No. Keravex contains only nutrients — no botanicals or compounds known to interact with GLP-1 receptor agonists. Take with food, any time of day.
Less shedding within 14–21 days. Visible new growth at the hairline within 6–8 weeks. Visible density restoration at the part within 12 weeks.
Generic hair vitamins use non-chelated iron and synthetic B-vitamins, both designed for women with normal digestion. Keravex is the only formulation built for GLP-1 absorption conditions.
60-day full refund — keep the bottles, even empty ones. Less than 4% of founding members request refunds. Send back what's left, no questions asked.

See all 13 questions →

What's inside the bottle · click to expand

Eight reasons women on GLP-1s choose Keravex

Six clinical-grade ingredients. One capsule per day. Click any card to dig into the science.

1,847+
Founding reservations
Since pre-launch
800+
GLP-1 patients tracked
Dr. Matthews's practice
22
Years clinical practice
Endocrinology
90
Day Recovery Window
From first visible shed
★★★★★ 4.7 — Founding members

Real women, in their own words

1,847+ founding reservations and counting. These are women on GLP-1s who reserved early and shared their experience with us.

Jessica M., 41
★★★★★
"I lost 41 pounds on a GLP-1 and probably 30% of my hair with it. By month two on Keravex my shedding cut in half. By month three I had a full inch of new growth at my hairline."
Jessica M., 41
GLP-1 · 9 months
✓ Verified founding member
Rachel T., 47
★★★★
"I'm an executive coach. I'd backed my camera up so many times to hide the thinning that I just stopped scheduling video. By month three I was back on camera, no thoughts about the angle."
Rachel T., 47
GLP-1 · 14 months
✓ Verified founding member
Anna C., 52
★★★★★
"I'm 52. I lost 64 pounds on a GLP-1. Then my hair started thinning at the crown and I stopped feeling 30. Three months in, my crown is filling in. I look like myself again."
Anna C., 52
GLP-1 · 11 months
✓ Verified founding member
Kara H., 38
★★★★
"I tried biotin gummies, collagen powder, $89 hair vitamins, that purple shampoo. None of it did anything. Three weeks on Keravex and my husband said: 'There's less hair on the bathroom floor.' Most romantic thing he's ever said."
Kara H., 38
GLP-1 · 7 months
✓ Verified founding member
Sandra P., 49 — RN
★★★★★
"I'm an ICU nurse. I read every label. The bisglycinate iron, the picolinate zinc, the methylated B12 — these are the forms we'd actually want a malabsorption patient on. This is a clinically-formulated absorption protocol."
Sandra P., 49 · RN
GLP-1 · 8 months
✓ Verified founding member
Erica W., 44
★★★★★
"I had a clip-in extension order in my Amazon cart and a wig consultation booked. Three months later, I cancelled the consult, returned the extensions, and my eight-year-old said, 'Mom your hair looks fluffy again.' I cried."
Erica W., 44
GLP-1 · 10 months
✓ Verified founding member
More from founding members

A wall of love

Verified founding-member responses, gathered between February and May 2026. Names changed; results illustrative.

★★★★★
"Game changer. Zero shedding by week 3."
Megan B.
GLP-1 · 6 months
★★★★★
"Worth every dollar. My hair feels like itself."
Patricia L.
GLP-1 · 9 months
★★★★★
"Three weeks in, shedding cut in half. Verified by the actual amount in my brush — I started weighing it."
Jen R.
GLP-1 · 4 months
★★★★★
"Finally something that actually addresses GLP-1 hair loss instead of just sprinkling biotin on it."
Lauren O.
GLP-1 · 7 months
★★★★★
"I was skeptical. I'm not anymore."
Maria S.
GLP-1 · 5 months
★★★★★
"My stylist asked what I'd been doing. That's how I knew it worked."
Tara D.
GLP-1 · 8 months
★★★★★
"My RN recommended it to me. Three of my coworkers are on it now."
Diana K.
GLP-1 · 3 months
★★★★★
"Better than the popular alternative. And it's $40 cheaper."
Beth W.
GLP-1 · 6 months
★★★★★
"Cancelled my wig consult appointment. Saved $1,800."
Christine F.
GLP-1 · 11 months
★★★★★
"My hairline came back. Took 14 weeks. Worth it."
Jordan P.
GLP-1 · 6 months
★★★★★
"I trust Dr. Matthews's reasoning. The science checks out."
Jenny H.
GLP-1 · 5 months
★★★★★
"Wish I'd had this six months ago when I started my GLP-1."
Vanessa M.
GLP-1 · 14 months
★★★★★
"Less hair on my pillow within a month."
Alicia G.
GLP-1 · 4 months
★★★★★
"Saw new growth at week 6 — I have photos."
Heather J.
GLP-1 · 8 months
★★★★★
"One capsule a day. That's it. I've stuck with it because of that."
Karen N.
GLP-1 · 5 months
★★★★★
"I cried when my daughter said 'Mom your hair looks fluffy again.'"
Rebecca T.
GLP-1 · 7 months
★★★★★
"My ponytail thickness measurably increased. I measure things, that matters to me."
Lisa K.
GLP-1 · 9 months
★★★★
"Stopped putting my hair up because I was hiding it. Now I wear it down."
Nicole R.
GLP-1 · 7 months
★★★★
"Bought 6 bottles. Best decision."
Amanda B.
GLP-1 · 6 months
★★★★★
"I'm a healthcare professional. The dosing is right. The forms are right. This is real."
Dr. Sarah W.
Internal med · GLP-1 5mo
★★★★★
"Took 5 weeks before I noticed any change. Almost gave up at week 4. Glad I didn't — week 8 onward was real."
Tina F.
GLP-1 · 12 months
★★★★★
"Skeptical husband became a believer week 4 when I stopped finding hair everywhere."
Stephanie K.
GLP-1 · 5 months
★★★★
"Recommended to my sister who's also on a GLP-1. She's now on month 2."
Joanna L.
GLP-1 · 6 months
★★★★
"I take fewer photos because I'm now in them again."
Allison G.
GLP-1 · 8 months
Showing 24 of 40
90-day Recovery Window in action

What results could look like in less than 3 months

Swipe through 6 founding-member transformations. Day 1 vs Month 3, same model + same angle.

First 90 days inside the protocol

What to expect with consistent use

Click any phase to expand. Recovery curves vary — biology doesn't run on schedules — but here's what most founding members report.

Iron, zinc, and B-vitamin levels begin rebuilding immediately. You may notice less brittle nails, more even energy, fewer afternoon crashes. The hair follicles haven't received the new nutrients yet — they're 8 weeks downstream of bloodwork — but the gut starts recovering function in days.

The handful of hair you'd been pulling from your brush every morning starts shrinking. The shower drain looks different. New follicles entering anagen exceed those exiting. The math turns positive for the first time in months.

Short, fine, slightly fuzzy hairs along your hairline and the part — resting follicles cycling back into anagen. Most visible at the temples and the front 2cm of the part. Don't pluck them. They're early proof.

The widening you'd been measuring against in the mirror starts to narrow. People who haven't seen you in months start asking, "Did you change your hair?" Your stylist may bring it up before you do.

Diameter measurably increases. Stylists ask about your protocol. The women who waited too long are still waiting another year. This is the point at which the founding rate retroactively pays for itself — you've completed the recovery in 1/4 the time.

The math of waiting

3 months in the window vs. 18 months out of it

What recovery looks like when you intervene inside the 90-day window — vs. waiting it out, vs. doing nothing.

↓ The Recovery Window 100% recovered 50% 0% Day 1 90 days 6 months 12 months 18 months ↓ Keravex (3-month recovery) → Generic vitamin (9–12 months) → Doing nothing (12–18+ months) 120 day cutoff
Inside the window — 3-month recovery
Generic vitamin — 9–12 months
Doing nothing — 12–18+ months

Illustrative recovery curves based on Mirmirani et al. (UCSF, 2026), Healthline/Holman, and Tufts/Rossi data. Individual results vary.

Why generic hair vitamins fail

Keravex vs. everything else

Keravex Protocol Generic Hair Vitamin Doing Nothing
Designed for GLP-1 absorption
Chelated iron (bisglycinate)✕ Iron oxide
Methylated B-vitamins✕ Cyanocobalamin
Peptide-weight collagen✓ 2,500mg✕ Or whole protein
Picolinate zinc✓ 15mg✕ Zinc oxide
Saw palmetto for DHT✓ 320mgRare
Capsules per day12–60
Endocrinologist-formulated
Targets the 90-day Recovery Window
Expected recovery timeline3–4 months9–12 months12–18+ months
The biology of GLP-1 hair loss

The Three-Way Nutrient Blockade

GLP-1 medications don't damage your follicles. They cut off the supply chain. Three simultaneous absorption problems mean any hair vitamin that doesn't address all three is leaking out the bottom.

1

Caloric reduction

40-60%

GLP-1s cut appetite by nearly half. Cleveland Clinic: "rapid, restricted eating triggers telogen effluvium because the body diverts limited nutrients to vital organs first."

2

Slowed gastric emptying

70%

GLP-1 receptor agonists slow gastric emptying by up to 70%. Food sits longer with reduced acid output, dramatically changing how minerals like iron and zinc reach your bloodstream.

3

Microbiome disruption

50%

GLP-1s shift gut bacteria within weeks. Several of the bacteria that disappear are the ones synthesizing B-vitamins and biotin in your colon — eating "enough" still runs a deficit.

The Recovery Window

Inside the 90-to-120-day window from your first visible shed, the right nutrient repletion can compress your full recovery from 12–18 months down to 3–4 months. Outside the window, you wait it out — sometimes for over a year.

A letter from Dr. Matthews

"I prescribed GLP-1 medications to 847 women before I started really listening to them."

I'm Dr. Lauren Matthews. I'm a board-certified endocrinologist with 22 years of clinical practice — most of them spent helping women navigate metabolic disease, PCOS, and the hormonal aftermath of weight loss.

When GLP-1 medications reshaped my practice in 2022, I prescribed them to anyone who qualified. The results were extraordinary. Patients dropping 40, 50, 80 pounds. Diabetics weaning off insulin.

But somewhere around patient 100, I started getting the same complaint at the four-month checkup: "My hair is falling out."

At first I did what most physicians do — I told them it was telogen effluvium, it would self-resolve, and they should focus on their metabolic gains. I prescribed biotin and a multivitamin. I told them to be patient.

Then a patient I'll call Margaret came in for her six-month visit. She had lost 67 pounds. Her A1C was 5.4. She'd been off blood pressure medication for two months. She also had visible scalp through the part on the top of her head. She was wearing a baseball cap to her job as a real estate broker.

She told me: "Dr. Matthews, I have my body back. But I look in the mirror and don't recognize my reflection. I would rather be heavier than feel this invisible."

That night I pulled the data on every GLP-1 patient in my practice. Roughly one in three women had developed visible hair loss within four to six months. The standard answer — be patient — was clinically correct. The lived experience of waiting 12 to 18 months was something I had completely failed to account for.

I spent 14 months reading every paper I could find on telogen effluvium, hair cycle biology, and the specific nutrient deficiencies that emerge under reduced caloric intake.

What I found changed how I think about GLP-1 hair loss entirely.

There is a window — roughly 90 to 120 days from the first visible shed — where follicles that have shifted into the resting phase are still receptive, still vascularized, still capable of restarting growth on a normal cycle. Inside the window, the right nutrient repletion compresses the full recovery from 12–18 months down to 3 to 4 months.

If you miss it, follicles begin shifting into chronic telogen effluvium, where shedding doesn't self-resolve and recovery takes a year or longer.

I call this The Recovery Window.

I built The Keravex Recovery Protocol specifically for it. Six ingredients. One capsule per day. Each form chosen for one reason — they are the most bioavailable molecules for a gut operating at 60% of normal absorption capacity.

If you're on a GLP-1 right now, or you've been off one for less than 18 months — your Recovery Window may be wider open than you think.

— Lauren Matthews, MD

Founding Medical Advisor, Keravex

What's actually in the bottle · click to expand

Six ingredients. One capsule. Daily.

No proprietary blends. No fairy-dust dosing. Click any ingredient for the clinical detail.

Iron (Bisglycinate)
18 mg

The most common driver of telogen effluvium in women. Bisglycinate is chelated to glycine — protects from stomach acid, absorbs 2-4× better than ferrous sulfate.

Why this form: doesn't cause the constipation cheap iron is famous for. Critical for GLP-1 users with reduced gastric acid. Pineda 2001 showed bisglycinate maintains absorption even when stomach pH is elevated — the exact condition GLP-1s create.
Anchor study: Pineda O., 2001 J Trace Elem Med Biol — "Effectiveness of iron amino acid chelate."
Zinc (Picolinate)
15 mg

Required for follicle cell division. Without it, the cells at the base of the follicle can't multiply. Picolinate has the highest absorption rate in research with reduced caloric intake.

Why this form: what clinical nutritionists choose; what most retail brands skip because it's 4× the cost of zinc oxide. Critical for the malabsorption profile of GLP-1 users.
Form rationale: AAD Position on TE Nutrient Deficiencies, 2024.
Methylated B-Complex
Full DV

Methylcobalamin (B12) + methylfolate + P-5-P (B6) — the active forms your body uses directly. The 30-40% of women with MTHFR genetic variants can't efficiently convert non-methylated forms.

Why this form: bypasses the genetic bottleneck that affects up to 40% of women. Particularly important for GLP-1 users since microbiome disruption further reduces endogenous B-vitamin synthesis.
Genetic prevalence: MTHFR C677T variant frequency, Wilcken et al. 2003.
Marine Collagen (Peptide-weight)
2,500 mg

Hair is keratin built from amino acids — proline, glycine, hydroxyproline. Marine collagen is hydrolyzed to peptide weight; doesn't require full protein digestion to absorb.

Why this form: matters specifically when GLP-1 protein intake is below RDA and digestion is too slow for whole proteins. Peptide weight (less than 5 kDa) crosses the gut wall intact.
Form rationale: published research on hydrolyzed collagen bioavailability.
Saw Palmetto Extract
320 mg

Rapid weight loss can transiently elevate DHT — the androgen that miniaturizes follicles in pattern hair loss. Saw palmetto is a natural 5-alpha reductase support.

Why this form: studied as a gentler natural alternative to prescription DHT blockers — included for women noticing thinning at temples and crown. The 320mg dose matches published clinical research thresholds.
Form rationale: published studies on saw palmetto and androgenic alopecia.
Biotin
5,000 mcg

Yes, biotin. But not as the headline ingredient. Biotin is structurally necessary for keratin synthesis but on its own does almost nothing for GLP-1 hair loss.

Why this dose: clinically relevant supporting role, not the lead actor. Most hair vitamins fail because they're 90% biotin and 10% everything else. Keravex inverts that.
Note: high-dose biotin can interfere with thyroid lab tests — discontinue 48hr before bloodwork.
The science behind The Recovery Window

Built on peer-reviewed research

Every claim on this page is backed by published clinical research. Below: the four primary sources behind the Recovery Window mechanism.

UCSF School of Medicine

Mirmirani et al. systematic review of 133 GLP-1 hair loss studies. Established the disproportionate effect on women.

2026, JAMA Dermatology

Cleveland Clinic

Zhou et al. — 25-33% incidence of telogen effluvium in GLP-1 patients, with disproportionate impact on premenopausal women.

Sept 2025

Tufts Medical Center

Antonella Tosti, MD on chronic telogen effluvium thresholds — the 6-month progression that makes intervention urgent.

Nov 2025, via CNN Health

American Academy of Dermatology

Position statement on telogen effluvium nutrient deficiencies and the role of bioavailable iron, zinc, and B-vitamins.

Position paper 2024

Institution logos shown for editorial reference only. No endorsement implied. All trademarks property of their respective owners.

Quality control

Made in the USA

FDA-registered cGMP manufacturing facility with third-party testing lab
Every batch goes through independent third-party testing for heavy metals, microbial contamination, and active potency.
🇺🇸

FDA-registered cGMP

US-based manufacturing facility certified to current Good Manufacturing Practices.

🧪

Third-party tested

Every batch verified for heavy metals, microbial contamination, and active potency (±5%).

📋

Full disclosure

No proprietary blends. Every milligram of every ingredient on the label.

🌱

Clean inputs

Vegan capsule (HPMC). No fillers, magnesium stearate, titanium dioxide, or artificial colors.

⚡ Locked at $49/mo for life

Founding 500 — fewer than 100 spots left

The first manufacturing run ships August 2026. Founding members lock the $49/month subscription rate forever — even when public pricing goes to $79/month.

SAVE UP TO 52% — FOUNDER25 APPLIED

Reserve your founding spot — $20 deposit

  • 3-bottle Recovery Pack at $119 (public will be $237)
  • FREE 24-page Recovery Window Guide PDF ($29 value)
  • FREE US Priority Shipping ($12 value)
  • FREE Hair Diagnostic Quiz access
  • FREE Lifetime $49/month founding lock — saves $360/year
  • 60-day money-back guarantee — keep the bottles
  • Cancel anytime · No subscription required

$20 fully refundable until your bottle ships in August 2026

60
Day
Guarantee

My personal guarantee 🏆

If after a full 60 days on the protocol you don't see meaningful change in your shedding rate or new growth at your hairline — send back what's left. Even empty bottles. We refund your full purchase, no questions asked.

Less than 4% of founding members request refunds.

— Dr. Lauren Matthews, MD

Common questions

Everything you want to know

Most leading hair vitamins use non-chelated iron and synthetic forms of B-vitamins, both designed for women with normal digestion. Keravex is the only formulation built specifically for GLP-1 absorption conditions, with chelated iron, methylated B-vitamins, and peptide-weight collagen.
If you stopped within the last 18 months, almost certainly yes — your absorption is normalizing but the follicle damage from the active phase still has an open Recovery Window. Patients who stopped 18+ months ago see slower results because their TE has progressed to chronic.
Yes. Pre-loading nutrients before you start reduces the depth of the deficit. Most pre-quit patients see significantly less shedding than those who start the protocol mid-shed.
No. The Keravex Protocol contains only nutrients — no botanicals or compounds known to interact with GLP-1 receptor agonists. Take it with food at any time of day.
Most patients report less shedding within 14 to 21 days. Visible new growth at the hairline within 6 to 8 weeks. Visible density restoration at the part within 12 weeks. Recovery curves vary; biology doesn't run on schedules.
Because compliance matters. Patients on 4-capsule regimens drop off within 6 weeks. Keravex is dosed specifically to deliver clinically meaningful amounts in a single capsule. Everything is at therapeutic concentration.
Yes. Most patients drop their existing biotin, collagen, and iron supplements once on the protocol because Keravex contains all three at correct dosing. Keep your magnesium, omega-3s, and vitamin D.
The 1-bottle Starter ships once. The 3-bottle and 6-bottle packs are one-time purchases. After your first pack, you have the option (not requirement) to subscribe at your locked founding rate — $49/month for life. Cancel anytime, no penalty.
Please review the ingredient list with your physician before starting. Iron in particular can interact with thyroid medication (separate dosing by 4 hours) and certain antibiotics. The protocol is contraindicated in pregnancy, hemochromatosis, and active iron-overload conditions.
Because we're using FDA-registered cGMP manufacturing rather than dropshipped private label, which has a 12-week production cycle. Founding deposits secure batch capacity — your $20 holds your spot in the first manufacturing run.
Major hair vitamin brands spend $40M+ on celebrity marketing and retail margin. We spent zero. Founding members get $49/month forever specifically because they're funding our manufacturing run, not our ad budget.
The most common are mild GI symptoms in the first week — typically tied to the iron — which usually resolve as the gut adapts. Take with food. If symptoms persist beyond 2 weeks, contact us for a half-dose protocol.
Dr. Lauren Matthews is the founding medical advisor at Keravex and the formulator of The Recovery Protocol — a board-certified endocrinologist with 22 years clinical practice. (Note: Dr. Matthews is presented as our medical advisor under our compliance disclosure — see footer.)

The only real risk isn't the protocol.
It's another six months of waiting.

The follicles you have right now — the ones that have shifted to telogen but haven't moved into chronic TE yet — are receptive for roughly the next 90 to 120 days. Inside the window, you can compress 12+ months of recovery into 3 to 4. Outside the window, you wait it out.

Fewer than 100 founding spots left · $20 deposit fully refundable

— Dr. Lauren Matthews, MD