Average hair density +80% after 6 months.* Measured, not promised.
Every bottle promises thicker hair. Very few can show a measurement. Here’s a two-minute routine with a serum clinically tested to increase hair density, and a date to check it’s working for you.
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FREE
Pre-wash mask16.000 Ft -
FREE
Hydro Serum10.200 Ft -
FREE
Scalp Massager4.700 Ft -
FREE
Wet Detangler5.500 Ft -
FREE
Mask sample1.000 Ft
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FREEPre-wash mask
16.000 Ft -
FREEHydro Serum
10.200 Ft -
FREEScalp Massager
4.700 Ft -
FREEWet Detangler
5.500 Ft -
FREEMask sample
1.000 Ft
“They all promise the same. And none of them changed a thing.”
Caffeine shampoo, biotin, a hair oil from TikTok. Every bottle said thicker, fuller, stronger.
Every brand gave you the same answer.
So you bought, tried and waited. The bottle ran out, but the drain looked exactly the same, and the next promise was already in your feed.
Fair question.
Here’s how to tell.
Three questions most bottles can’t answer.
Every label says thicker and fuller. Very few say how they know. Three questions sort the measured from the merely promised.
Tap each card to see the answer.
Or just one ingredient…
Many labels quote a study on a single ingredient, tested on its own. That tells you little about the bottle you’re holding.
“My hair feels thicker” isn’t a measurement…
Plenty of results come from questionnaires, where testers say how their hair feels. A microcamera counts what’s actually on the scalp instead.
Most of it goes down the drain…
Shampoo is rinsed off in a minute. Tablets go through your whole body first. Only a leave-on product stays where hair grows.
Keep those three questions in mind. We’ll answer each one on this page.
So first, one thing you can know for sure: how hair grows.
Every hair on your head keeps its own calendar.
Each hair grows, rests, falls out and is replaced, on its own schedule. That’s why losing some hair every day is normal: it’s usually put at 50 to 100 hairs a day.
The hair is actively growing. On a healthy scalp, around 85 to 90% of hairs are in this phase at any one time.
The hair stops growing but stays in place. When more hairs than usual are resting at once, hair looks thinner.
The old hair falls out and a new one starts in its place. From there it grows roughly one cm a month and the cycle repeats.
What this means for you. If you still find a handful in the shower a few weeks into a new product, it’s mostly hair that stopped growing before you started. New hair needs time, and by about month three, the hairs that were resting at the start have made way for new ones. That’s the first fair moment to compare.
And that changes the question from “which product should I try next?” to “how will I know this time?”
You need a plan, a date to check, and something from day one to compare against. In other words: a protocol.
A leave-in scalp serum and a two-minute routine, for less hair loss and denser hair.
Growth Serum is a light, water-based serum from SkinFairytale that you leave on your scalp. No rinsing, no greasy roots, no change to how you style or colour your hair.
What makes it a protocol is the plan around it: two minutes every morning and evening, a first check at month 3 and a second at month 6. You know when to look, and you’re never left guessing in between.
Remember the three questions? Here’s how Growth Serum answers them.
The study used the exact serum you’d buy.
A 400× microcamera measured density at month 3 and month 6.
Never rinsed off, so it works all day.
And this time you’ll know: a photo on day one, a check at month 3 and month 6.
What does that look like on an ordinary day?
Two minutes in the morning. Two in the evening.
The same three steps each time. Why twice? It gets you the same results as the study and turns into a habit you don’t skip.
The two minutes aren’t the hard part. The hard part is the stretch when you’ve done everything right and the mirror still looks the same.
So you won’t be doing it alone: we email you each month with what’s normal at that stage, and remind you when it’s time to take your check-in photos.
That’s the how. Now the why: what’s in the bottle?
You’ve tried biotin. You’ve tried caffeine. You haven’t tried these two.
The shampoo, the tablets, the lotion a friend swore by: read the labels and the same few names keep coming back. Growth Serum has those too. But it’s built around two plant-derived ingredients you probably haven’t tried yet.
An extract of pea sprouts, developed in Switzerland. Helps reduce hair loss and stimulate hair growth.
Made from the cells of the turmeric plant (Curcuma longa). Helps reduce hair loss and supports fuller-looking hair.
Plus the ones you know, for scalp care, in a base of rosemary water. Heard of DHT? Caffeine is the ingredient lab studies link to it.
Silicone-free · No added fragrance · Vegan
Both are plant-derived, and the serum is dermatologically tested. It’s a cosmetic, not a medicine.
But new doesn’t mean better. How do I know any of this works?
Don’t take our word for it. Look at the measurements.
An outside lab used a microcamera to count the hairs on the same patch of scalp in people aged 25 to 65: before Growth Serum, after 3 months and after 6 months. Here’s what it found.
Month 3 and month 6 are also when you take your own check-in photos.
Tested on the serum itself. The finished Growth Serum, not single ingredients by themselves.
No guesswork. A 400× microcamera measured and recorded the result. Nobody was asked how their hair “felt”.
Run by an outside laboratory. We commissioned the study. They ran it and analysed it, and the result is statistically significant.*
Read the full clinical study (PDF) →
What do the numbers mean?
Each circle marks one follicle, an opening in the scalp, and the number shows how many hairs grow from it. More circles, and more 2s and 3s, mean denser hair on the same patch of scalp.
*Instrumental measurement with a microcamera (Callegari 1930 Soft Plus). Independent study commissioned by SkinFairytale, n = 10, p = 0.00013 at 6 months. In the study the serum was applied once a day. The 3-month figure was not tested for significance on its own. Results vary between individuals.
What do those six months look like for me?
Your protocol, month by month
The protocol has two phases. Phase 1 takes you to your first check at month 3. Phase 2 takes you on to month 6.
From your start photo to your first check.
Twice a day, morning and evening. Some notice less hair in the shower in the first weeks, for others nothing changes yet. Both are normal.
The month most products end up in a drawer. This time your first check is already on the calendar.
The first fair moment to compare your hair with the start, and right where the study took its first measurement.
Here, you decide. Carry on to the full six months, where the study measured the biggest change, or stop here if this was enough. Until you confirm, nothing ships automatically.
The same routine, up to the full six months.
Same two minutes, morning and evening, and by now they’re an automatic part of your day.
The end of the protocol, and where the study took its final measurement.
No, it’s your choice. But hundreds of customers have already come back for more. Hair grows slowly, and new hairs need time to gain length. Think of it like skincare: you don’t stop the moment you see the first results. By month 6 the two minutes are already part of your morning and evening, so staying with it takes nothing new, just your next plan. And don’t worry, nothing renews automatically.
Okay, that’s the plan on paper. Has anyone done it?
Growth Serum is already part of the daily routine for women across Europe
Since we started selling Growth Serum, we’ve sold thousands of bottles, and every restock has sold out again. Here’s how a few of those women use it.
Thank you for such a good product. After 3 months the difference is already obvious.
Light texture, doesn’t weigh hair down. The dropper measures nicely.
He’s used it for about five months and he’s surprised and happy with it. Quite a few new hairs have grown where it looked like there would never be any again.
Reviews are collected in our Shopify store and translated from Slovene. “Verified purchase” is shown only when a review is linked to a real order.
Good for them. How is a serum any different from what I’ve tried?
Shampoo rinses off. A serum stays on your scalp.
Shampoo sits on your scalp for about a minute, then almost all of it goes down the drain. EU safety scientists put what’s left at about 1%.*
A serum isn’t rinsed off, so 100% of it stays on your scalp to do the work.
| Growth Serum | Shampoos | Supplements | Hair oils | |
|---|---|---|---|---|
| Goes directly on the scalp | ✓ | ✓ | ✗ never touches the scalp | ✓ |
| Stays on, nothing to rinse out | ✓ | ✗ rinsed off | – not applied | ✗ washed out |
| Clinically and dermatologically tested | ✓ | ✗ most aren’t | ✗ | ✗ most aren’t |
| Hair stays clean and non-greasy | ✓ | ✓ | ✓ | ✗ oily until washed |
Then you already know why a serum is the right format. What differs is what’s in the bottle and what’s behind it. For Growth Serum that’s a clinical study on the finished serum, two ingredients you probably haven’t tried, our help with keeping up the routine and a 180-day guarantee.
*Standard values from the EU Scientific Committee on Consumer Safety (SCCS Notes of Guidance, 12th revision, 2023): 0.01 for shampoo, 1.0 for products left on the skin. They describe how much of a product stays on the skin, not how well a product works.
It’s different. But is it right for me?
This isn’t for everyone. See if it’s for you.
We’d rather lose a sale than have you start something that isn’t right for you.
- you’ve tried products that only promised, and want one that was measured
- your hair looks thinner or has lost volume
- you want a cosmetic you can use every day
- you finish what you start: two minutes, twice a day, for three months
- you want a difference in a week
- parts of your scalp have had no hair for years
- your hair loss is sudden, patchy or comes with other symptoms. That’s a question for a doctor, not a cosmetic.
- you already know you’ll stop after the first bottle
If you found yourself in the first box,
here’s what you start with.
Everything else your hair routine needs, on us.
They come with your first order, and none of them are random. Each one fits around your serum routine, so the rest of your hair care is covered too.
That’s what comes with it.
Now choose how far you want to go.
Start your protocol.
One payment. No subscription. Start today, and your first check is three months away, not “sometime”. Take Phase 1 and decide about Phase 2 at month 3, or take the whole protocol now.
Scalp MassagerWet Detangler
Pre Wash Mask sample
Hydro SerumExtra giftScalp MassagerWet DetanglerPre Wash Mask sample
Pre-wash maskExtra giftHydro SerumExtra giftScalp MassagerWet DetanglerPre Wash Mask sampleA lot in one box. But is it worth the money?
That depends on how much it bothers you.
If it’s something you notice now and then, a cheaper bottle may be all you want to spend on it. Pharmacy shelves have scalp lotions for a fraction of the price.
But if you’ve already paid for a few bottles that only promised, you know where the money went: on promises. This time you pay for a result someone measured, and you know exactly when you’ll find out.
Paid once: 69.296 Ft for the full six months, or 39.598 Ft for Phase 1. Serum, gifts and the plan included. No subscription, nothing renews.
And if I do all of it and I’m still not happy?
Then you get your money back. Even if the bottles are empty.
A month is too short to judge hair, so our guarantee runs for 180 days.
It covers your first order of a 3- or 6-month plan. If you start with Phase 1 and carry straight on to Phase 2, it covers both. The 180 days run from your first order and don’t start again. A single bottle isn’t long enough to judge, so it isn’t covered.
We ask three things:
About the photos: they only show that you followed the protocol. You keep them and send them only if you ask for your money back. We don’t judge your results. You decide whether you’re happy. They are never published or used in advertising without your written permission.
Fair enough. Who’s making that promise?
A dedicated team from Slovenia you haven’t heard of... yet.
We’re SkinFairytale from Naklo, a small town in Slovenia. It all started in 2014 when our founder Katarina made a balm for her baby daughter’s skin.
Then came Growth Serum, which started the same way, only this time it was for Katarina herself. She has dealt with hair loss for a long time, and the final formula took more than two years to develop.
Now we’re taking Growth Serum beyond Slovenia, and Poland is one of our first stops. Nobody here knows us yet, but we’d like to change that, one routine at a time.
Gold innovation award 2026 · GZS Regional Chamber of Gorenjska
Good to know. But I still have a couple of questions.
Go ahead, ask.
Is it a medicine?
What exactly is in it?
Can it irritate my scalp?
Will my hair look greasy? Can I still style and colour it?
Can I use it while pregnant or breastfeeding?
Six bottles at once: do they keep?
When will I see results?
Is the award just marketing?
Hair comes out when I massage it in. Am I making it worse?
How much do I use, and how long does a bottle last?
Why twice a day?
What if I miss a day?
What happens after month 6? Do I have to use it forever?
Is this a subscription?
Can I try one bottle first?
How does the 180-day guarantee work?
What do you do with my photos?
Who am I buying from?
Delivery, payment and returns in Poland?
Didn’t find your question? Ask in the chat. Our AI assistant answers right away, any time, and a real person from the team is there Monday to Friday, 8:00 to 16:00.
Before you choose, here’s how it went for others.
These are our numbers so far, online and in shops.
I’m thrilled with Growth Serum. It WORKS: I noticed a change in my hair after just one month. I’ve used it for two and a half months, since the very start of sales, and new hairs have started to grow. The structure of my hair is much better too, and a bit less falls out.
As with anything, discipline and persistence matter. I bought the serum at launch and later stocked up. Together with the pre-wash mask and the protective serum, my (balayage) hair has become nicer. This serum really works: I have lots of new young hairs, and they’ve grown surprisingly fast.
Great product, doesn’t make my hair greasy. I’ve been using it for two months and I’m noticing new hairs at the front of my scalp.
Reviews from our Shopify store, translated from Slovene. *Study details above.
Now it’s your turn.
In six months, you’ll be six months older anyway. What do you want your hair to look like when you get there?
- Growth Serum is a leave-in scalp serum.
- It takes two minutes, morning and evening, for three to six months.
- In an independent study, average hair density was 80% higher after six months.*
- And if you follow the protocol on a 3- or 6-month plan and you’re not happy, you have 180 days to ask for your money back, even with empty bottles.
P.P.S. No, it isn’t a subscription. We checked twice.
*Instrumental measurement with a microcamera (Callegari 1930 Soft Plus). Independent study commissioned by SkinFairytale, n = 10, p = 0.00013 at 6 months. In the study the serum was applied once a day. Results vary between individuals.