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DHT BLOCKER Physician ReviewedTrichologist developed 100% Money back Guarantee
Daily, with food — Take four capsules daily. — Take with a meal for best results.
89%

Recommend to Friends & Family After 6 Months¹

83%

Noticed Hair Regrowth After 6 Months¹

85%

Noticed a Reduction in Shedding After 6 Months¹

Target the Root Cause

Physician Reviewed – Trichologist Developed DHT Support With Immune Boost Combats hormonal hair loss — Natural and effective ingredients — Reduce the impact of DHT Support your hair through hormonal changes. — These statements have not been evaluated by the Food and Drug Administrati DHT Blocker DHT Blocker
Zone 1TM

DHT Blocker with Immune Support

Rooted defense against hair loss

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Subtotal $131.85

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We recommend 3-6 months of consistent use to see results.

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Description

A unique natural herb combination with digestive support for high nutrient absorption that combats hormonal hair loss at its root. Plant-based ingredients like saw palmetto and green tea extract help maintain healthy hormone balance. L-Lysine HCl reduces ongoing shedding, while grape seed extract promotes follicle growth. A science-backed supplement for long-term hair regrowth support.

Supplement Facts

Supplement Facts
Serving Size: 4 Capsules
Servings Per Container: 30
Amount Per Serving
% DV**
Zinc (as Zinc Bisglycinate Chelate)
15 mg
136%
DHT Blocker Proprietary Blend
Saw Palmetto Extract (Serenoa repens) Fruit (Std. to 45% Fatty Acids), Green Tea Leaf Extract (Camellia sinensis) (Std. to 98% polyphenols, 75% catechins, 45% EGCG), Nettle Root Powder (Urtica dioica), L-Lysine HCl, Grape Seed Extract (Vitis vinifera) (Std. to 95% Proanthocyanidins), Pygeum Bark Extract (Pygeum africanum), Pumpkin Seed Extract 4:1 (Cucurbita pepo)
1,205 mg
†
Immune/Digestive Proprietary Blend
Grapefruit Seed Extract (Seed) (Citrus paradisi), Chicory Root Extract (Cichorium intybus), Lactobacillus acidophilus — 15 Billion CFU** (75 mg)
525 mg
†
** At time of manufacture
† Daily Value (DV) Not Established
Other Ingredients: Hydroxypropyl Methylcellulose, Microcrystalline Cellulose, Silica, Maltodextrin, Vegetable Magnesium Stearate
Does not contain: Gluten, Soy, Wheat

Benefits

Blocks DHT at the Root

Clinically developed blend of saw palmetto, stinging nettle, and EGCG to inhibit 5-alpha reductase—the enzyme that converts testosterone to DHT.

Supports Immune & Gut Health

Includes probiotics and antioxidants to help balance immune function, aid inflammatory responses, and improve nutrient absorption.

Developed for Maximum Hair Support

Goes beyond DHT blocking to target stress, poor diet, malabsorption, gut health, medications, and yeast overgrowth.

Trichologist-Developed, Clinically Trusted

Formulated by certified trichologist William Gaunitz with 20+ years of clinical experience, trusted by professionals worldwide.

How to use

Take 2 capsules in the morning and 2 capsules in the evening daily, 15 minutes before a meal. Always take with a meal. For best results, use consistently for a minimum of 3-4 months.

Ingredients

Saw Palmetto Stinging Nettle Green Tea L-Lysine Chicory Root Grapefruit Seed Extract Pumpkin Seed Extract Grape Seed Extract Pygeum Bark Zinc Probiotics Prebiotics EGCG Nettle Root
Learn More
DHT BLOCKER

DHT BLOCKER

100% No-Risk. Within 90 Days. Money Back Guarantee.

As featured in:

Built for your zone

What we'd pair with this

NutraM Scalp Serum
Zone 1TM

NutraM Scalp Serum

A lightweight melatonin scalp serum that nourishes the scalp and supports fuller, healthier-looking hair.

 HairStem Peptide Shampoo and Conditioner

Peptide Shampoo and Conditioner

A complete shampoo and conditioner system that cleanses, nourishes, and supports healthier hair and scalp.

Nutritional Hair Loss

Explore Zone 2™

Inflammatory Hair Loss

Explore Zone 3™

Not sure if this
product is right for you?

Take Zone Hair Pull Test™
What to expect

Your growth timeline.
Here's what happens.

Day 1–30
Day 31–60
Day 61–90

The foundation The formula starts working from the inside. Shedding begins to slow as follicles get relief from hormonal stress.

The shift Shedding reduces significantly. Thinning areas start to hold and hair feels stronger at the root.

The result Less shedding and the first signs of new growth. 83% noticed hair regrowth at six months.¹

Individual results will vary based on multiple factors, including but not limited individual biology, consistency and duration of use, and the severity and cause of hair loss.

Understanding The Science

Your scalp is under hormonal attack.
DHT Blocker knows exactly how to fight back.

Hair loss isn't random — it maps to specific zones on the scalp, each with a distinct cause. DHT Blocker is formulated to target Zone 1, where hormonal imbalance shrinks follicles and shortens growth cycles.

Zone 1TM
Hormonal Hair Loss DHT is quietly shrinking your follicles.
Zone 2TM
Nutritional Hair Loss Your follicles are starving for nutrients.
Zone 3TM
Inflammatory Hair Loss Scalp irritation blocks the growth cycle.
Zone 1™ · Hormonal

Your follicles are
shrinking. And you don't know it.

Testosterone can convert into DHT, which can bind to susceptible hair follicles and gradually shorten the growth cycle — leading to finer, weaker strands and visible thinning, especially at the temples and crown.

83% Reported and noticed hair regrowth.¹
Hormonal hair loss: thinning at the crown and hairline
Zone 2™ · Nutritional

Your follicles are
starving. And you don't know it.

Deficiencies in key vitamins, minerals, and nutrients can disrupt the hair growth cycle, leading to increased shedding, diffuse thinning, and weaker growth. Correcting these nutritional gaps helps create the foundation follicles need to grow normally.

85% Reported a reduction in shedding.¹
Nutritional hair loss: diffuse thinning throughout
Zone 3™ · Inflammatory

Your follicles are
irritated. And you don't know it.

When the scalp becomes irritated — from stress, immune responses, or product buildup — blood flow to follicles is restricted and the growth cycle breaks down. Calming botanicals and targeted nutrients help restore a healthy scalp environment where hair can grow.

89% Recommended to family and friends.¹
Inflammatory hair loss: patchy shedding across the scalp

Not sure if this product is right for you?

Take the Zone Hair Loss Test

Real results.
Don't take our word for it.

Real before-and-afters from real HairStem™ users — at 60, 90 and 180 days. No filters. No retouching.

Before and after 180 days

“Hair loss is stressful, scary, and heartbreaking so I wanted to provide an early review so others, like myself, can have a bit of a sigh of relief. I’m happy with my experience.

Regrowth Visible 180-Day Journey Denser Roots
Regrowth Visible

New strands coming in where hair had stopped growing.

180-Day Journey

tayed consistent and the results were worth every day.

Denser Roots

Hair growing back fuller and stronger from the root up.

“I had tried everything and given up when I found Advanced Trichology. At first I thought nothing was happening, but I stuck to the plan and my hair actually grew back!”

Regrowth Visible 180-Day Journey Denser Roots
Regrowth Visible

New strands coming in where hair had stopped growing.

180-Day Journey

Stayed consistent and the results were worth every day.

Denser Roots

Hair growing back fuller and stronger from the root up.

“My confidence took a hit when my hair started thinning, but sticking with the plan changed everything. My scalp isn’t showing anymore, and my hair looks strong and full.”

Regrowth Visible 180-Day Journey Denser Roots
Regrowth Visible

New strands coming in where hair had stopped growing.

180-Day Journey

Stayed consistent and the results were worth every day.

Denser Roots

Hair growing back fuller and stronger from the root up.

“I was losing confidence along with my hair, but after a few months on the Advanced Trichology routine, I started seeing new growth. My before-and-after photos still surprise me.”

Regrowth Visible 180-Day Journey Denser Roots
Regrowth Visible

New strands coming in where hair had stopped growing.

180-Day Journey

Stayed consistent and the results were worth every day.

Denser Roots

Hair growing back fuller and stronger from the root up.

Customer Reviews

Overall rating: 4.7 / 5 from 5366 reviews.

I would recommend this for the rest of my life. The best vitamin product for hair.

Zachary C. 5/5 Verified

FoliGROWTH®

I've used this product for getting my hair back in shape and keeping it that way! Great product..

Kim P. 5/5

FoliGROWTH®

It works!

Suzanne A. 5/5 Verified

DHT BLOCKER

I have been trying and trying to get this product stopped I cannot afford them and I will get an attorney

Glora S. 4/5

DHT BLOCKER

I didn’t receive this order, please tell Advance Trichology to just credit my account, thank you

Mark G. 3/5 Verified

DHT Blocker Maximum Strength

Decent product. Been using after wash from nizoral because it can be pretty drying to the scalp. Adds almost to much moisture even with less sprays as instructed. Makes it look more oily and flat rather then “fuller” as product describes.

Ryan M. 3/5 Verified

Hairstem™ Peptide Spray

I never leave reviews but, I had to come back after 2 months of using this product and let me tell you. My hair has thickened so much since I started using these supplements. I see a 95% reduction in hair shedding and my hair has grown a lot. Thanks to this company. I recommend anyone to try this product out...

Tiffany S. 5/5 Verified

DHT BLOCKER

Just stared 30 days ago.

Karen V. 3/5 Verified

FoliGROWTH®

Once a day formula. As with any product like this it takes a long time to show whether it will help with hair growth. Im into my second month.

Linda B. 5/5 Verified

DHT Blocker Maximum Strength

I like my hair is thicker

Alejandro V. 5/5 Verified

EFA COMPLETE

It works

Debra W. 5/5 Verified

DHT BLOCKER

Dirty specks floating inside. Use to be clear and golden

John G. 2/5 Verified

NutraM Scalp Serum

Dirty liquid. Not clear and golden like it usually is

John G. 2/5 Verified

NutraM Scalp Serum

Received product today

Elizabeth S. 5/5 Verified

FoliGROWTH®

I really like the spray for I between shampoo and conditioner

Theresa M. 5/5 Verified

Hairstem™ Peptide Spray

Satisfied

Robert K. 4/5 Verified

DHT BLOCKER

Love this product. Definitely seeing the results!

Jeriann S. 5/5 Verified

FoliGROWTH®

Recommend by my trichology being taking for 6 months and we can see progress. Very happy

Denise G. 5/5

FoliGROWTH®

I think the DHT Blocker works but I see a slowig of any new growth on top of my head in the "male pattern" area, i.e. the area of hormonally influenced thinnness. I stopped using the topical Nutra M serum- could it be that I need to continue that? Also perhaps some element in my diet missing, or stress? Anyway, still haven't seen the number of new hairs in that area.

Wendy S. 4/5 Verified

DHT Blocker Maximum Strength

This has really decreased the shedding and loss of hair since I started this product! I am on my second box and I am losing less and less hair. I’m excited to see the growth start soon, for I am very optimistic in this products ability to deliver exactly what my hair needed.

J D. 5/5 Verified

DHT Blocker Maximum Strength

As a result of using a special DHT shampoo plus this DHT supplement, I have seen quite a big difference in several months of use on my hair resulting more thickness, longer and softer feel. I am very satisfied so far with this product and only continued use will definitely be rewarding....

Fernando S. 5/5 Verified

DHT BLOCKER

I have seen how the DHT Blocker has filled in my scalp where previously there was no hair! This complex really works!! Thank you!! A. Utley

Arinetta U. 5/5 Verified

DHT BLOCKER

Love it!!! This spray gives so much volume and makes my hair so soft!!

Ika T. 5/5 Verified

Hairstem™ Peptide Spray

Inconsistent liquid color lowers my confidence of quality control

John G. 3/5 Verified

NutraM Scalp Serum

It has made a huge difference in my hair’s growth and overall look and feel. Thank you for a great product!

Cheryl M. 5/5 Verified

DHT BLOCKER

Arrived on time 🙂

Joseph R. 5/5 Verified

DHT BLOCKER

Hair feels different after 30 days of use. better quality of hair after 60 days. But no visual difference in the thinning hair areas.

Ramon M. 3/5 Verified

DHT Blocker Maximum Strength

Customer photo review of DHT Blocker Maximum Strength

This is much more about the shampoo vise the extra strength supplement. I use both but the dramatic increase in volume happened very shortly after I started using the shampoo. Everyone asks me what I’m using and then ask me for the company information.

Lynn M. 4/5 Verified

DHT Blocker Maximum Strength

Dark color and odd odor. I think it arrived rancid.

Deborah S. 1/5 Verified

NutraM Scalp Serum

Easy to take, so far been on ot 3 months, seeing some improvement, will do another 3 months.

Mireya A. 4/5 Verified

DHT BLOCKER

I’ve been using this product for a couple months now and I can see some improvement in my receding hairlines.

Donald N. 5/5 Verified

FoliGROWTH®

I've experienced less loose hairs on my pillow and in the shower. It seems to me that the product is working well

Martha H. 5/5 Verified

FoliGROWTH®

Why it works

Everything your hair needs. Nothing it doesn't.

Every ingredient in DHT Blocker has a purpose, from inhibiting 5-alpha reductase to supporting gut health and immune function for optimal nutrient absorption.

11 active ingredients

A targeted blend of herbs, probiotics, and botanicals — formulated to block DHT naturally.

Trichologist-Developed

Created by certified trichologist William Gaunitz, WTS. Supported by 20 years of expertise in hair growth solutions.

100% plant-based formula

No synthetic fillers. Every ingredient is there for a reason.

DHT BLOCKER
Gut health support

Probiotics and prebiotics for optimal nutrient absorption and immune balance.

120 vegetable capsules

Take 2 in the morning and 2 in the evening, 15 minutes before a meal.

Targets 5-alpha reductase

DHT Blocker inhibits the enzyme that converts testosterone to DHT — the leading cause of hormonal hair loss.

Inside DHT Blocker

The nutrients your follicles
have been asking for.

Saw Palmetto
Nettle Root Extract
Pumpkin Seed Oil
Pygeum Africanum
Grape Seed Extract
Green tea

Quick Start Bundles

Men 18-29
Men 18 - 29 Hair Growth Bundle
Shop Now
Men 30+
Men 30+ Hair Growth Bundle
Shop Now
Women 18-34
Women 18 - 34 Hair Growth Bundle
Shop Now
Women 35-49
Women 35 - 49 Hair Growth Bundle
Shop Now
Women 50+
Women 50+ Hair Growth Bundle
Shop Now

Real results.
Don't take our word for it.

+2,120 people tried FoliGROWTH® and documented what happened. Here's what they found.

Before and after

“I had tried everything and given up when I found Advanced Trichology. At first I thought nothing was happening, but I stuck to the plan and my hair actually grew back!”
 

Before and after

“Hair loss is stressful, scary, and heartbreaking so I wanted to provide an early review so others, like myself, can have a bit of a sigh of relief. I’m happy with my experience.

Before and after

“I was losing confidence along with my hair, but after a few months on the Advanced Trichology routine, I started seeing new growth. My before-and-after photos still surprise me.”
 

Before and after

“My shedding slowed down first, then I noticed baby hairs coming in. It’s the first time in years I feel hopeful about my hair.”

“I used to avoid bright lighting because my scalp showed so much. Now my hair looks fuller and healthier, and friends keep asking what I changed.”

“I followed the plan exactly and the results were worth it. My hair feels stronger, my part looks smaller, and I finally see real regrowth.”

“I bought the products out of desperation, but they exceeded my expectations. My hair is thicker, my scalp feels better, and my confidence is up.”

“I could see my hair thinning in photos, which was heartbreaking. After sticking with Advanced Trichology for a few months, the change has been dramatic.”

“My stylist noticed the improvement before I did. She said my hair looked fuller and healthier — and now I can see the difference in every picture.”

“I wasn’t expecting fast results, but consistency really paid off. My hair is growing again, and my scalp isn’t irritated anymore.”

“The transformation has been incredible. I went from visible thinning to a fuller head of hair, and I’m more confident going out without hats.”

“I was skeptical because I’d tried so many things, but this is the first routine that made a visible difference. My hair looks fuller and feels healthier than it has in years.”

“I used to dread washing my hair because of how much I’d lose. Now the shedding has slowed down, and I’m actually seeing new growth in the spots that worried me the most.”

“I didn’t expect my before-and-after photos to look this different. My hair feels thicker, my part has filled in, and I finally feel like myself again.”

“My confidence took a hit when my hair started thinning, but sticking with the plan changed everything. My scalp isn’t showing anymore, and my hair looks strong and full.”

“I had patchy thinning around my temples, and now those areas are filling back in. It feels amazing to finally see progress.”

“My thinning was getting worse every month, and it really scared me. After staying consistent, I started seeing small improvements that turned into big ones.”

“I kept seeing progress month after month — less shedding, healthier strands, and now actual regrowth. I’m honestly thrilled with the results.”

Regrow the
true you. Start your journey
Advanced Trichology® Founder

20 years of research.
One formula that works.

William Gaunitz, WTS, spent over two decades studying why hair falls out — and more importantly, how to stop it. His clinical research identified three root causes of hair loss: hormonal, nutritional, and inflammatory. HairStem™ is the direct result of that work — not a trend product, but a clinically developed formula tested across thousands of real patients.

Read More

Today, Advanced Trichology is a globally known brand and has successfully helped thousands overcome hair loss.

William Gaunitz Advanced Trichology® Founder

FAQs

The science, simplified.

Real answers to the questions your doctor probably hasn't had time to explain.

What is Biotin? Does it matter in treating hair loss?

Question and Answer: Biotin for hair loss? Does it matter?

What is Telogen Effluvium? How can we fix it fast for hair regrowth?

Telogen Effluvium Hair Loss - What is it? How To Fix It Fast

How do nutrients, or lack thereof, impact hair growth?

Nutritional Hair Loss - How Does It Work?

Is age a factor in hair regrowth?

Is Age a Factor in Hair Regrowth? Reserving Age Related Hair Fast With William Gaunitz

How did Advanced Trichology develop this system?

Natural Solution Of Hair Regrowth - Kathy Ireland Featuring William Gaunitz WTS

Does this treatment work for Women?

Hair Loss Treatment for Women with Advanced Trichology

Does this treatment work for Men?

Hair Loss Treatment for Men with Advanced Trichology

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