If you've read why Dr. Williams says hair loss on a GLP-1 has three causes, not one — this is the protocol she now recommends to address all three.
Dr. Williams' 3-Pathway Recovery Formula — Built for Women on GLP-1 Medications
10,000+ reviews from women on GLP-1
You came here for one reason: your hair started shedding 3 to 4 months into your GLP-1 medication, and the standard advice — biotin, more vitamins, "wait it out" — has not worked.
Dr. Sarah Williams, MD, OB-GYN at Williams Women's Health Group, has been writing publicly about why: hair loss on a GLP-1 is not one problem but three at once — rising DHT, elevated cortisol, and nutrient gaps your body struggles to absorb. A single ingredient like biotin cannot address all three.
Herflow is the formula she built around that mechanism. 300 mg KSM-66 Ashwagandha for cortisol. Saw Palmetto and Pumpkin Seed for DHT. Iron, Zinc, D3 and Biotin — paired with BioPerine for absorption — for the deficiencies. Two capsules a day. 90-day money-back guarantee — finish the pouch, full refund.
Inside the recovery window (months 3–9 of your medication), this is reversible. Past month 12, it gets harder. Past month 18, some follicles may not return.
Designed for women on GLP-1
Addresses DHT, cortisol & deficiency
2 capsules a day · no biotin breakouts
The protocol Dr. Williams recommends
Three pathways. One pouch. Inside the recovery window — this is reversible.
Calm the cortisol pathway
Chronic stress and the hormonal shifts after 40 keep cortisol elevated — and elevated cortisol pushes follicles out of their growth phase. 300 mg KSM-66 Ashwagandha (standardized to 2.5% withanolides) is the only form with published trials showing measurable cortisol reduction in 8 weeks.
KSM-66 Ashwagandha · 300mgBlock the DHT pathway
As estrogen drops after 40, DHT rises — the hormone that miniaturizes female follicles. Saw Palmetto (200 mg, standardized to 45% fatty acids) and Pumpkin Seed (150 mg) work together to block that conversion.
Saw Palmetto 200mg · Pumpkin Seed 150mgRefill the deficiencies — and absorb them
Iron, zinc, D3 and biotin are the gaps most common after 40 and on a GLP-1 — but they only help if your body absorbs them. BioPerine raises absorption and Annatto Tocotrienols protect the follicle. Most women notice less shedding in 4–6 weeks and visible change at the part and hairline by month 3–4. Two to three months is the floor.
Iron · Zinc · D3 · Biotin + BioPerine
"The women I see in my practice who recover their hair on GLP-1 medications all do one thing first: they fix the gut. Biotin cannot reach a follicle when the bacteria that absorb it have collapsed. Herflow is the protocol I now recommend to start that recovery."
Dr. Sarah Williams, MD
OB-GYN · Williams Women's Health GroupHerflow Hair Strength-3
The 3-pathway daily formula for women losing hair after 40, on the medication, or after a stress year.
Supplement facts
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Product Details
Herflow Hair Strength is a 3-pathway daily formula designed for women losing hair after 40, on the medication, or after a year of chronic stress. Most supplements pick one cause. Herflow addresses three: DHT (Saw Palmetto + Pumpkin Seed), Cortisol (300mg KSM-66 Ashwagandha — the clinical dose), and Deficiency (Iron Bisglycinate, Zinc, D3, Biotin), layered with BioPerine for absorption and Annatto Tocotrienols for follicle protection. Two plant-based capsules a day. No biotin breakouts. Made in a GMP-certified US facility.
Free Shipping
Free shipping on all subscription orders. We process orders within 1 business day. Tracking updates are sent via email once your package ships.
Return & Refund Policy
We offer a 90-day money-back guarantee. Finish the entire pouch — every serving — and if you do not see your shedding slow down, email us. Full refund including shipping. No bottle to return. No phone call. No photo submission.
support@tryherflow.com
Reviewed & formulated by
Dr. Sarah Williams
MD · OB-GYN · Williams Women's Health Group
Here is why it actually works
Three pathways. One pouch. Most supplements pick one.
Hair loss after 40 has three causes — DHT, cortisol, and deficiency. Most supplements pick one and call it a formula. Herflow includes all three at clinical doses in 2 capsules.
Chronic stress and hormonal shifts elevate cortisol — and elevated cortisol blocks hair growth at the root. 300 mg KSM-66 Ashwagandha is the only form with trials showing measurable cortisol reduction in 8 weeks.
After 40, DHT rises and miniaturizes female follicles. Each cycle the strand comes back thinner. Saw Palmetto (200 mg) plus Pumpkin Seed (150 mg) block this conversion.
Iron, zinc, biotin, and D3 only help if your gut absorbs them. BioPerine raises absorption up to 30 percent and bamboo silica builds keratin. Tocotrienols protect the follicle from the inside.
Week 5: less shedding in the drain. Week 8: hairdresser or partner notices. Month 4: visibly thicker. Month 6: density returning at temples and crown.
From Shedding to New Growth
Real women on Dr. Williams' protocol. No filters. No edits.
Herflow Capsules vs The Usual Options
You have probably tried more than one solution already — and that makes sense. Most fix one pathway. Here is what makes Herflow different.
Herflow
Others
Real numbers, not bar charts
What our customers actually report. No graphs. No fluff.
Used to support: KSM-66 Ashwagandha — the cortisol-lowering ingredient most brands skip
KSM-66 Ashwagandha (300 mg) — the only ashwagandha form with published clinical trials showing measurable cortisol reduction within 8 weeks at this exact dose. Standardized to 2.5% withanolides. This is the pathway Bloom and Bond, Nutrafol, and biotin skip entirely. Cortisol blocks hair growth at the follicle root. Lower it and the growth phase comes back online.
300 mg
Used to support: Saw Palmetto + Pumpkin Seed — block follicle miniaturization
Saw Palmetto Berry Extract (200 mg) standardized to 45% fatty acids — the clinically active form. Blocks the enzyme conversion that creates DHT, the hormone that miniaturizes female follicles after 40. Pumpkin Seed Extract (150 mg) works in tandem with Saw Palmetto for combined DHT-blocker potency, plus phytosterols that further support healthy follicle function.
350 mg total
Used to support: Iron, Zinc, D3, Biotin — the four most common deficiencies after 40
Iron Bisglycinate (14 mg, 100% DV) — chelated form for higher absorption, gentler on the stomach. Zinc Bisglycinate (10 mg, 100% DV) — chelated for absorption, also mild DHT support. Vitamin D3 (1,000 IU, 500% DV) — addresses the deficiency found in over 50% of women after 40 and exits the resting phase. Biotin (500 mcg, 1,000% DV) — clinically appropriate dose, not the mega-dose that causes breakouts.
Full daily values
Used to support: Tocotrienols + L-Cysteine + Bamboo Silica + BioPerine
Annatto Tocotrienol Complex (100 mg) — the form used in hair-clinic protocols, with a 2010 double-blind trial showing measurable hair-count improvement at this exact dose over 8 months. L-Cysteine HCl (80 mg) — primary amino-acid building block of keratin. Bamboo Stem Extract (30 mg) — 70% silica, the co-factor your body needs to bond keratin together. BioPerine (10 mg) — patented black pepper extract, increases bioavailability up to 30%.
220 mg
Frequently Asked Questions
Take 2 capsules daily with water, preferably with a meal. Consistency is key — take them at the same time each day for best results.
Hair loss after 40 has three causes — DHT, cortisol, and nutrient deficiency — that hit together. Most supplements pick one. Herflow addresses all three at clinical doses: 300mg KSM-66 Ashwagandha for cortisol, 200mg Saw Palmetto plus 150mg Pumpkin Seed for DHT, and Iron, Zinc, D3, Biotin layered with BioPerine and Annatto Tocotrienols for deficiency and follicle protection.
Yes. Herflow is designed to work alongside the medication. The ingredients are plant-based and have no known interactions with GLP-1 medications. Many women on the medication tell us Herflow stabilized their hairline after 6-8 weeks. Always consult your doctor if you have specific concerns.
Herflow is built for perimenopause first. After 40, estrogen drops and opens the door for DHT to rise and cortisol to stay elevated — the same three-pathway pattern. Most of our customers are in perimenopause without the medication involved.
Postpartum shedding that does not end by month 6 often has the same root issue — cortisol stays elevated and nutrient stores have been depleted. Many women in our community used Herflow successfully for postpartum shedding extending past the normal 6-month window.
Biotin only addresses deficiency — one of three pathways. Nutrafol covers more pathways but charges $89 per month with lower clinical doses of several actives. Bloom and Bond focuses on DHT only (pumpkin seed + saw palmetto). Herflow is the only one that includes a fully-dosed KSM-66 Ashwagandha at $39 per month.
Most women notice less shedding around week 5. By week 8, the hairdresser or partner often notices before they do. Visible density change typically takes 3 to 4 months because hair grows in cycles measured in months.
Yes. 90-day money-back guarantee. Use the entire pouch — every serving. If you do not see your shedding slow down, email us. Full refund including shipping. No bottle to return. No phone call.
Yes, subscribe and save. Cancel, pause, or adjust anytime — no commitments.