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Doctors Accidentally Grew Hair Back With a Fecal Transplant. Top Dermatologist Reveals the Strange Study Most Doctors Never Mention — and the Shortcut to Fuller Looking Hair
Dr. Holmes explains why your hair roots have a tiny living world of their own, and how 90.000+ women over 50 are sprouting baby hairs with a 10-second spray at night. No transplant. No gut overhaul. 91% saw less shedding in 2 weeks.

By Dr. Yolanda Holmes, MD, FAAD ✅ Board-Certified Dermatologist | September 29, 2026
By Dr. Yolanda Holmes, MD, FAAD ✅ Board-Certified Dermatologist | September 29, 2026
4.85 · 5000+ reviews
I'm Dr. Holmes.
I'm a skin doctor. I have worked on women's hair for 15 years.
I have seen hundreds of women who came to me after years of trying everything:

Thin hair that didn't get better with the foam

An itchy, tight, flaky scalp that nobody could explain

Hair that went fine and wispy, like baby hair

Skipping photos. Skipping family dinners.

"Your blood test is normal. It's just age."
You name it. I've seen it.
Women who took hair pills for a year and got nothing.
Women who used the foam until it made their head itch and their hair fall out faster.
Women who were told, again and again, that it was just age.
It's not.
A few years ago, a strange study changed how I look at hair.
Most doctors have never heard of it.
Doctors Accidentally Grew Hair Back
In 2017, doctors wrote about two people with a bad infection in their gut.
To treat it, they got a fecal transplant.
That means healthy gut germs from a donor were put into their gut.
It was for their stomach. It had nothing to do with their hair.
But both of them had lost all of their hair. Every bit of it.
And after the transplant, their hair grew back.
Both of them.
Now, I want to be honest with you.
Their hair loss was a different kind than yours. It was the kind where the body attacks its own hair.
And I would never, ever tell you to do this.
But that study told us something important.
Something a lot of women already feel.
Your gut and your hair are connected.
But Here's What Nobody Tells You: Your Scalp Has Its Own Gut
When people hear "gut germs," they think of the stomach.
But your skin has tiny living things too.
And about 1 out of every 4 of your skin's germs lives inside your hair roots.
Not on top of your scalp. Inside the root. Right where your hair grows.
That means you have a tiny living world in every hair root on your head.
And in women with thin hair, that tiny world looks different.
Scientists have seen it again and again.
Why Hair Pills And The Foam Keep Failing You

Think about a garden.
If weeds took over your garden, more fertilizer won't help.
The seed is fine. The soil changed.
That is what happened to so many of the women I see.
Their hair roots are fine. The world around the roots changed.
And nothing they tried ever touched it.

Hair pills and probiotic pills. They go into your stomach. Then into your whole body. Very little ever gets to your scalp. The tiny world inside your hair roots never sees them.

The foam. It pushes your roots hard. But it does nothing about what's living around them. That's why so many women lose hair first. And why it itches.

Special shampoos. They sit on your head for about 10 seconds. Then they rinse down the drain. They can't reach inside the root.

Kitchen oils. This one surprises people. Some oils can actually feed the yeast that bothers your scalp.

Doctor visits. Your blood test comes back normal. You hear "it's just age." You go home with nothing.
None of that is your fault.
You were fighting the wrong thing, with the wrong tools.
After 50, The Wrong Crowd Moves Into Your Hair Roots
Here is what scientists found when they looked inside thin scalps.
It's not that there are too few germs. It's the wrong mix.
First, one kind of germ moves inside. In women with thin hair, it was found inside the hair root more. And on top of the scalp less. It moved in.
Second, a yeast grows. It grows more with age. But only in scalps that are thinning. In women whose hair is fine, it stays the same.
Third, that yeast eats your scalp's oil. And it leaves something behind.
That leftover makes your scalp itchy. Tight. Flaky. Sore. Right around the root.
That's the itch nobody could explain.
And shampoo can't wash it out. There is a thin film inside the root. It's like the plaque on your teeth that brushing misses.
Now, here is the honest part.
Scientists see this pattern again and again. They don't know yet if it causes thin hair.
But I know this.
A hair root that is bothered every single day is not a happy place for a hair to grow.
Think of it this way.
Your hair root is a good plant.
It's just living next to bad neighbors.
And a plant that is bothered all day, every day, stops trying.
It's not dead. It's waiting.
Why It Gets Worse After 50
There are 4 big reasons the mix changes:
🔴 Age. The yeast grows more as we get older. But only in thinning scalps.
🔴 Your scalp's oil changes. In thinning scalps, the oil is different. That gives the yeast more to eat.
🔴 Years of products. Heavy oils, sprays, and powders sit on your scalp, day after day.
🔴 Your gut. What happens in your gut can show up on your scalp. That's what the transplant study told us.
And it makes a loop you can't escape on your own:
More oil → more yeast → more itch → roots go quiet → thinner hair → more worry, more products → more buildup.
Round and round.
Your hair roots are living in the wrong neighborhood.
The Good News: You Don't Have To Fix Your Whole Gut
Please keep caring for your gut. It matters.
Eat well. Take your probiotic if you like it.
But fixing your whole gut can take years.
And a transplant is not an option.
Here's the good news. You don't have to wait.
Your gut is one end of the connection. Your scalp is the other end.
And your scalp is the end you can reach.
Tonight.
A pill can't get inside your hair root.
But something you put right on the root can.
The Gentle Ferment That Calms Your Scalp's Tiny World

When I looked for something to help that tiny world, I found it in a surprising place.
Yeast.
Not the yeast that bothers your scalp.
A gentle yeast. From the same family bakers have used for thousands of years.
It's called a Saccharomyces ferment.
Here is the big difference.

Probiotic pills are live germs. They have to get through your stomach first. Then your whole body. Your scalp is last in line.

This ferment is a "postbiotic." It's what's left when the good yeast is gently broken down. It doesn't have to get through your stomach. It never goes there. It goes right on your scalp.
That's the secret.
In one small study, women who put a yeast ferment on their scalp said the itch, the tight feeling, and the burning went way down.
Then I added the rest:

Rice extract. In studies, it helped turn up the "grow" signal in hair roots.

Coffee bean (caffeine). On the scalp, it gathers in the hair root. Up to 10 times more than in the skin around it. And it can stay there for up to 2 days.

Two old roots from China. Sophora root and Angelica root. Angelica has been used for over 2,000 years.

A little biotin. For the hair itself. But I'll be honest with you. Biotin is not why this works. If biotin fixed thin hair, you would have fixed it years ago.
Natural does not mean weak.
Every one of these goes right on the root. Not through your stomach.
Why This Works When Everything Else Didn't
It's simple.
Pills went to the wrong end.
The foam pushed the root.
Shampoo rinsed away.
This starts right in the root's own neighborhood.
When the scalp's tiny world calms down:

The itch and tight feeling can ease

The root is not bothered all day, every day

Hair has a better place to grow

Less hair ends up in your drain
Women tell me they feel normal again.
Not like they're fighting their own head every morning.
The Solution: Hair Helper Spray

After years of work, this is what I made.
Hair Helper Spray.
Over 88,000 women have tried it. 5000+ reviews. 4.85 stars.
Here's what women told us:

91% saw less shedding in 2 weeks

84% saw new baby hairs by week 4

78% said their hair was thicker by week 12
Here's what most women notice, in order:
First, a calmer scalp. Then less hair in the drain. Then tiny baby hairs along the part.
What makes it different:

Made by a dermatologist

It stays on. No rinse. No grease.

No drug in it

10 seconds, at night

No shed first. No being stuck on it forever. Stop any time.

It works alongside what you already do for your gut. Keep your probiotic if you like it.
How to use it:
Spray it on your part, the top, and the sides.
Rub it in.
Go to bed.
That's it.
Here's What Women Are Saying

"I was skeptical… But I noticed less hair in my shower drain by week 3 with TryBello. Now at month 4, I have baby hairs growing where my scalp was showing through. My hairdresser asked what I'm doing differently."
Jennifer M. ★★★★★ Verified Purchase
"I was actually kind of skeptical after trying… at least 3–4 other products. But after 2 weeks with TryBello, I started seeing baby hairs. By week 4, my shedding slowed way down. Stick with it — it takes patience but it works."
Sarah K. ★★★★★ Verified Purchase
"I've suffered with thin hair for years and now I'm menopausal. I've used it every night since I purchased it. It doesn't make my hair greasy or stiff the next day and I've had lots of compliments — even my hair dresser is impressed."
Kay G. ★★★★★ Verified Purchase
"Age and Covid took a toll on my hair. With Trybello I am seeing new growth… along my hairline. Love this product."
Konnie B. ★★★★★ Verified Purchase
"I'm not horrified or brought to tears when I look in the mirror anymore. … It definitely looks a heck of a lot better. Thank you for producing a great product."
Catherine R. ★★★★★ Verified Purchase
Try It Completely Risk-Free For 120 Days

I know you have tried a lot of things.
I know you have been let down.
So here is my promise.
Use Hair Helper Spray for 120 days.
If you are not happy, send one email. You get every penny back. Even if the bottle is empty.
This is not some 30-day trial that ends before you can see anything.
You get 120 full days.
Most women notice these first:

A calmer, less itchy scalp

Less hair in the drain

Tiny baby hairs along the part
Why am I so sure?
Out of 88,000 women, fewer than 3 in 100 asked for their money back.
The Best Price Right Now

Right now, Hair Helper Spray is up to 69% off.
That's as low as $22.50 a bottle. Normal price: $80.
Why so low?
The more months you get, the less each bottle costs.
I wanted it that way.
Real change takes about 16 weeks. I would rather you stay long enough to see it.
That's less than one month of the hair pills most of my patients used to buy.
You pay 1 time. That's it.
And you have 120 days to try it.

UPDATE: As of January 19, 2026 – 2:47 PM EST
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Current inventory: 3,847 units remaining
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Your gut has a tiny world inside it.
So does every hair root on your head.
They both deserve care.
After 15 years, this is the first thing I would tell every woman who walked into my office:
You don't have to fix everything at once. You just have to start at the right end.
Start at the root.
To your health,
Dr. Yolanda Holmes, MD, FAAD Board-Certified Dermatologist

Dr. Holmes Recommends

Hair Helper Spray
10 seconds a night.
Right on the root.
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✔ 120-Day Money-Back Guarantee
✔ Even if the bottle is empty

Customer Reviews

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Laura Mitchell
My hairdresser doesn't use Facebook, but she swears this changed her life. She's 56 and her hair is thicker than mine now (I'm 42!). Just ordered my first bottle.
Like · Reply · 👍 Like 4 58 min

Karen Roberts
Absolutely loving my Hair Helper! Been using it for 6 weeks and the shedding has dropped like crazy. 💕
Like · Reply · 👍 Like 1 56 min

Michelle Anderson
I was skeptical at first… but honestly, this spray is worth every penny. Two of my coworkers have already ordered it after seeing my results!
Like · Reply · 👍 Like 4 51 min

Diana Thompson
Had to buy one for my sister too – she kept "borrowing" mine 😂
Like · Reply · 👍 Like 4 47 min

Jennifer Hayes
OMG SAME! I saw it was back in stock and ordered immediately. Didn't want to miss out again!
Like · Reply · 👍 Like 4 39 min

Patricia Coleman
Can't even begin to tell you the difference I feel day to day. My confidence is BACK.
Like · Reply · 👍 Like 4 36 min

Emma Parker
Hey Emma, this is what you need instead of those expensive supplements you've been taking!
Like · Reply · 👍 Like 4 32 min

Susan Miller
Just got mine in the mail today! Using it tonight for the first time. Fingers crossed! 🤞
Like · Reply · 👍 Like 4 31 min

Mary Johnson
Has anyone else noticed their hairdresser asking what they're doing differently? Mine literally asked to take a photo of the bottle!
Like · Reply · 👍 Like 4 30 min

Linda Brown
For me, it took about 8 weeks to really see the difference. But now at 12 weeks? Night and day.
Like · Reply · 👍 Like 4 31 min

Dorothy Garcia
My daughter actually showed me this article. I didn't believe it at first, but after just 6 weeks, I feel so much more confident. No more avoiding mirrors!
Like · Reply · 👍 Like 4 29 min

Carol Rodriguez
Wow this sounds amazing. Has anyone over 60 tried this? I'm 63 and nervous about trying another product...
Like · Reply · 👍 Like 4 28 min

Linda H
I'm 67 and it's working beautifully for me! Give it a shot – you've got 120 days to try it risk-free anyway.
Like · Reply · 👍 Like 4 27 min

Sandra Davis
I've been using this for 8 weeks and I'm honestly shocked. No more shedding in the shower, and I can finally sleep through the night without worrying. My hair hasn't felt this healthy in YEARS.
Like · Reply · 👍 Like 2 26 min

Nancy Anderson
Just ordered mine! Can't wait to try it.
Like · Reply · 👍 Like 1 39 min

Helen Thomas
Really want to test this out. My part has been getting wider and it's freaking me out.
Like · Reply · 👍 Like 2 36 min

Glenda clark
Do it! I waited 3 months before ordering and I regret not starting sooner. It really works.
Like · Reply · 👍 Like 1 33 min

Deborah White
Does anyone know how long shipping takes? I want to surprise my mom with this for her birthday.
Like · Reply · 👍 Like 3 49 min

Sharon Harris
Mine arrived in 4 days!
Like · Reply · 👍 Like 7 46 min

Jessica Clark
Your mom will love it! It's the perfect gift if she's been struggling with thinning hair.
Like · Reply · 👍 Like 1 39 min

Barbara Mitchell
I showed this article to my hairdresser and she said "YES, this is exactly what I've been telling people." She ordered two bottles that night. If my stylist trusts it, that's good enough for me.
Like · Reply · 👍 Like 1 39 min
MEDICAL & HEALTH DISCLAIMER: The information and other content provided on this page, or in any linked materials, are not intended and should not be construed as medical advice, nor is the information a substitute for professional medical expertise or treatment.
If you or any other person has a medical concern, you should consult with your health care provider or seek other professional medical treatment. Never disregard professional medical advice or delay in seeking it because of something you have read on this page or in any linked materials. If you think you may have a medical emergency, call your doctor or emergency services immediately.
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. Individual results may vary.
Dr. Holmes's patient references are illustrative. Research described reflects published studies and does not mean this product produces the same results.
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