Stop Hair Thinning, Boost Growth, and Regain Your Confidence

A science-backed, natural solution to prevent hair loss, stop thinning, and restore confidence—no side effects, just real results.

Clinically-backed, natural formulas

Trusted by thousands of men and women

Proven to help improve hair density and thickness

Experience A Visible Decrease in Excessive Hair Shedding And Thinning Within Weeks of Consistent Use

Premium Ingredients. Proven Science. Real Results.

Premium Ingredients. Proven Science. Real Results.

At Adegen, we believe that hair care solutions should be both effective and safe. That’s why every ingredient in our products and every tool in our system is meticulously designed to deliver visible, lasting results—without compromise.


The winning combination of our ARB™ Shampoo and SM Brush goes beyond basic hair care, targeting the root causes of hair thinning and shedding. Together, they cleanse, stimulate, and nourish the scalp to create the ideal environment for healthy hair growth while helping you maintain strong, vibrant hair over the long term.


With every use, you’re not just caring for your hair now—you’re investing in yourself by proactively preventing hair loss.

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Bottle of Adegen shampoo on a sudsy surface with a blue scalp scrubber.

Unlock Your Best Hair With Every Wash

Premium Ingredients. Proven Science. Real Results.

Infused with our breakthrough Adegen ARB™ Complex, this science-backed formula restores blood flow to hair follicles, reducing shedding and promoting thicker, healthier hair. Key ingredients like Caffeine & Niacinamide energize growth, Tea Tree & Eucalyptus soothe and cleanse, while Menthol & Zinc PCA strengthen and refresh the scalp.


Paired with the Adegen SM Brush, designed to boost circulation and enhance absorption, this powerful duo maximizes results—cleansing buildup, stimulating follicles, and unlocking faster, more visible regrowth.


This dynamic duo doesn’t just wash your hair—it transforms it, giving you the confidence of stronger, thicker strands with every shower.

The Science That Separates Us

Here's How We Stack Up Against Other Brands

Targets root cause of hair thinning

Proven by over 10,000 happy customers

Made with natural, hormone-safe ingredients

Engineered as a holistic approach for maximum results

Privately owned, dedicated to customers over profits

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Take Back Your Hair Health Using This Simple Routine

This routine is for everyone—whether you’re addressing hair shedding and thinning or proactively maintaining the health of your hair. With consistent care and premium ingredients, you can protect your hair follicles, promote growth, and ensure long-term vibrancy and strength.

Person washing hair with foamy shampoo.
Blue gel-like shampoo poured from a white bottle onto a surface.Person washing hair with shampoo, using hands and blue ring for scrubbing.Before and after comparison of hair, showing improvement over one month.

Get Started With Our Best Selling

ARB Hair Growth Shampoo

Rated 4.8 out of 5 stars

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Free Shipping on all US subscription orders

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"This is the only shampoo I’ve ever used that gives my hair volume. I used to lose handfuls of hair in the shower, now I lose 5 strands max." —Erica T.

What is ARB Shampoo and how does it work?

Who should use ARB Shampoo?

What ingredients are in ARB Shampoo?

How long can I expect to notice results?

What do I get when I subscribe?

4.8
Rated 4.8 out of 5 stars
Based on 44 reviews
Total 5 star reviews: 39 Total 4 star reviews: 2 Total 3 star reviews: 1 Total 2 star reviews: 2 Total 1 star reviews: 0
93%would recommend this product
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44 reviews
  • ET
    Erica T.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    5 months ago
    Best shampoo I’ve ever used

    This is the only shampoo I’ve ever used that gives my hair volume. When I first started using this product I washed my hair everyday as it instructs. I started using this shampoo in January 2024. About a month later and still to this day I use it about 3-4 times a week. I have long hair and it was hard to manage washing and styling my hair 7 days a week. Every time I use the shampoo I use the scalp stimulator brushes and leave it on 10min. I never use conditioner anymore and my hair is great. I used to loose handfuls of hair in the shower, now I loose 5 strands max.

  • JS
    James S.
    Verified Buyer
    I recommend this product
    Rated 4 out of 5 stars
    5 months ago
    3 months progress

    It's hard to tell whether the topical or shampoo is having the most impact but together with the scalp brushes and micro-needle roller I'm making really good progress. My hair is thicker and softer than it had been in years. I'm hoping my parking lots begin to fill in but from what I've read if the hair follicle is dead, a hair transplant is the only solution....and that is off the table. I'm so grateful to Adegen for the obvious improvement I've made so far. Patience and consistency is the name of the game.

  • TW
    Tony W.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    6 months ago
    At 58 yo. My hair is making a comeback.

    About a year and a half difference since I started using Adegen products. Slowly but surely making a comeback.

  • NG Profile picture for Nick G.
    Nick G.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    1 year ago
    The Best Long lasting shampoo /2-3 months.

    First time I tried the ARB shampoo I was really surprised.This is not like any shampoo.You don’t need much,It does not lather like other shampoos,smells great.

    Also there is tingling felling when you add it to your scalp.Great combination with scalp brushes.I am sold for life.

    Thank YOU.Adegen Changed My Life.

    🦁❤️🦁

    #theholygrailforhairloss

  • SD
    Steve D.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    2 years ago
    5 Stars

    Hi everyone,

    It’s been about a year and a half since I started using the shampoo and brush only. I shampoo every other day and brush twice everyday. Thought I would show you what my hair looks like today vs before I started. The first pic was pretty much my hair at its worst. These are both shown after I comb it and spray gel it right out of the shower. Also adding a pic of how it normally looks dry now.

  • AC
    Austin C.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    2 years ago
    5 Stars

    So I wanted to share with you guys my progress. I’ve only been using this for three weeks. I immediately start with the 15 topical drops instead of the 5. Why not go all the way the first time was my thought.

    My routine as follows: before I go to bed

    Wash my hair with the shampoo and use the brush for 5 mins. Then wash my hair off. And then I reapply more shampoo and let it set for 10 mins and then wash off. Then I use 2 MLs of the dropper and let that sit on my head all night and then all day the following day and then repeat. Every other day a use the roller for 5 mins

    I did get a hair transplant about 5 years ago and I would never recommend it too anyone ever. Super painful and expensive. I wish I would have know about adegen back then because I wouldn’t have put myself through that.

  • TO
    Tessa O.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    3 years ago
    5 Stars

    Grey t shirt = day 1

    Black t shirt = today

    Can’t believe this so only 90 days and my hair is sooooooo much thicker with loooooads of new hair growing! So so happy with my progress and can’t wait to see how things develop!! This stuff is magic!!

    I started with shampoo and 5s but once the bottle of serum was finished I just continued with shampoo, and seems to have some the trick.

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