Why you are losing your hair: DHT, the androgen receptor, and what actually stops it
Not stress, not your shampoo, not the hard water - in the overwhelming majority of men, one androgen acting on follicles that...
A European laboratory for hair loss.
The formulas people actually research for: RU-58841, CB-03-01, Pyrilutamide, Minoxidil, GHK-Cu and more.
Janoshik, COA Tested
Blended in the EU
IN THE LAB
Every batch is tested before it ships.
We formulate and fill in our own EU facility, then check identity, purity and concentration in-house. Nothing leaves the lab until the numbers are in spec.
Batch, blend date and expiry on every bottle
Formulated and made in the EU
CATALOG
What the lab makes.
Every formula in the range targets a different part of the same problem: RU58841 and pyrilutamide at the androgen receptor, minoxidil at the growth phase, GHK-Cu and scalp support around the follicle. Each batch is tested by an independent lab before it ships from inside the EU.
RU58841 Topical Solution
4.9 (88)·5/8% · 30/50/100 ml
Occupies the androgen receptor so DHT cannot deliver its signal to the follicle.
This is the cause, not the symptom. On its own it will not push a dormant follicle back into growth.
From €39,99
View
Pyrilutamide 0.5% (KX-826)
4.6 (16)·0.5% w/v · 30 mL
A newer topical androgen-receptor antagonist. Different molecule, same target as RU-58841.
For people who do not tolerate RU. Run one blocker or the other, not both.
€90,00
Waitlist
CB-03-01 2.5/5% (Clascoterone)
2.5/5% · 50 ml
Blocks the androgen receptor at the follicle, then breaks down in the skin into an inactive form.
The only one here that finished phase 3. Clascoterone sold much cheaper elsewhere is usually weaker than the label says.
From €89,00
Waitlist
Minoxidil 5%
4.6 (25)·5% · 60 mL
Extends the growth phase so follicles stay active longer. It does nothing to the hormone driving the loss.
Pairs with a blocker, never replaces one. Stop it and the growth it borrowed goes back.
€60,00
Waitlist
Ketoconazole Shampoo
An antifungal wash that handles the flaking and irritation sitting underneath a lot of shedding.
Two or three washes a week, alongside a blocker. It is not a blocker itself.
€29,99
Waitlist
GHK-CU Copper Peptide Spray
4.5 (13)·Copper peptide · 30 mL
A copper peptide that works on the condition of the scalp itself. Not an antiandrogen; it does nothing to DHT.
For scalp quality. On its own it will not hold a receding hairline.
€50,00
Waitlist
Natural Hair Regrowth Serum
4.6 (13)·Topical · 50 mL
Caffeine, rosemary and botanical oils. Scalp support, and the mildest thing in the range.
A leg of the routine, not the whole table. It does not block DHT.
€60,00
Waitlist
HOW IT WORKS
What DHT does.
Most hair loss is caused by DHT — a hormone that slowly shrinks your follicles until they stop growing hair. Our formulas stop that process right at the scalp.
- 01
Block DHT
The active binds to the receptor on your follicle so DHT can't attach and keep shrinking your hair.
- 02
Protect the follicle
Applied to the scalp only. It works where the problem is — without moving through the rest of your body like a pill does.
- 03
Regrow
With DHT blocked, weakened follicles recover and grow thicker hair again. Most people see change in three to six months.
Why topical, not a pill
Oral DHT blockers work through your entire body, which is where their side effects come from. A topical antiandrogen concentrates the effect on your scalp and keeps it there — the potency of a real antiandrogen, applied only where you need it. That is the whole point of the RU-58841 approach.
REVIEWS
What people actually report.
Unedited accounts from people using this. Individual results and timelines vary.
4.9
-
jakub9 July 2026, 6:40 pm
Great service, package here in 3 days
Verified buyer
Folliva Labs repliedCheers, glad it turned up quick.
-
Sven9 July 2026, 1:05 am
tried loads of stuff over the years and this is the first that actually held the line
Verified buyer
Folliva Labs repliedGlad it stuck for you where the others didnt. Cheers.
-
Youssef K.8 February 2026, 12:34 pm
Took about two weeks to turn up and the tracking sat frozen for days, was getting annoyed ngl. product itself is good but the wait sucked
Verified buyer
Folliva Labs repliedReally sorry about that one. It got stuck at customs and sat far too long. We sent you a second bottle free straight away. Anytime a tracking number stops moving for a few days just email us and we sort it.
-
Emre J.7 July 2026, 11:31 pm
package took a bit longer but got here fine
Verified buyer
-
Finn G.3 July 2026, 5:56 pm
stopped my recession dead. wish i found this years ago
Verified buyer
-
Henrik D.26 May 2026, 7:43 pm
legit seller, fast delivery
Verified buyer
-
sander8812 May 2026, 11:32 pm
my barber noticed the temples filling in before i did lol
Verified buyer
-
Julius Kaiser3 May 2026, 1:29 pm
quick delivery cheers
Verified buyer
-
Karim2 May 2026, 3:45 am
quik and easy, will order again
Verified buyer
-
Rasmus Z.28 April 2026, 8:59 am
came off fin because of the sides, no sides with this and my hairline is holding. relieved honestly
Verified buyer
-
finn24 April 2026, 5:20 am
Product is fine, no issues. Only thing is i emailed a question and it took over a week to get back to me, was around new year to be fair
Folliva Labs repliedSorry for the slow reply, that was the christmas week and we fell behind. Back to normal now, thanks for bearing with us.
-
B19 April 2026, 2:18 am
scalp used to get flaky, way better now and the hair feels stronger
Verified buyer
-
Vytautas Z.12 April 2026, 2:00 am
asked a question by email, replied same day. good
Folliva Labs repliedAnytime, ask us whatever you need.
-
Anonymous12 April 2026, 12:40 am
quick replies when i asked about the dose
Verified buyer
-
Georgi Peeters9 April 2026, 12:37 am
good
Verified buyer
-
K.J.7 April 2026, 4:11 pm
ordered late at night, shipped next morning
Verified buyer
-
rasmus31 March 2026, 8:17 pm
Received today, well packaged
Verified buyer
-
georgi24 March 2026, 4:30 pm
holding steady, no new bald patches which is a win at my age
Verified buyer
-
Julius19 March 2026, 5:03 am
slow going but the fall has definitely eased off
Verified buyer
-
T.R.18 March 2026, 6:29 pm
smooth order fast ship
Verified buyer
-
Nils15 March 2026, 6:58 am
arrived well packed, no issues
Verified buyer
-
gubbe7 March 2026, 4:56 pm
happy customer, quick turnaround
Verified buyer
-
the_stig887 March 2026, 3:19 am
Top, kam schnell an
-
Tomas Muller23 February 2026, 1:54 am
early days, maybe 6 weeks, less falling out already though
-
Emre22 February 2026, 9:27 pm
Thx for the quick shipping!!
-
Stefan8 February 2026, 4:55 pm
6 months, thicker on top, no more seeing scalp under bright lights
Verified buyer
-
Omar T.1 February 2026, 10:48 am
Very friendly and quick, thanks!
-
Rasmus S.31 January 2026, 4:46 am
Thanks! got here faster than i thought
Verified buyer
-
P30 January 2026, 1:10 am
Alles bestens, danke
Verified buyer
-
Ivan R.21 January 2026, 10:35 pm
definetly ordering again
Verified buyer
-
H10 January 2026, 5:56 pm
temples looked rough, now theres baby hairs filling them in. made up
Verified buyer
-
Youssef Novak10 January 2026, 1:47 am
no problems at all, recommend
-
S.B.9 January 2026, 8:05 pm
reordered, same good service
Folliva Labs repliedCheers for coming back.
-
kacper_p8 January 2026, 11:34 pm
came in a plain box, perfect
Verified buyer
-
hansi_13 December 2025, 8:36 pm
Schnelle Lieferung, danke!
Verified buyer
-
Marek30 November 2025, 10:12 am
discreet package, appreciated
Verified buyer
-
David Muller22 November 2025, 9:19 am
finasteride wrecked my libido, this gave me zero sides. huge for me
Verified buyer
-
Mateusz13 November 2025, 11:03 pm
no fuss, on time
Verified buyer
-
Oskar A.11 November 2025, 4:06 am
only a couple weeks in so cant really say yet, no complaints though. will update
Verified buyer
-
oskar31 October 2025, 9:01 am
small hairs coming in at the temples, cant complain
Verified buyer
-
Aleksander R.4 October 2025, 8:19 pm
Received within the week, all good
Verified buyer
-
Tobias26 September 2025, 12:03 pm
keeps my hair as long as im consistent, skip a week and i can tell
Verified buyer
-
lucas26 September 2025, 6:06 am
Greitas pristatymas, ačiū
Verified buyer
-
Z.J.16 September 2025, 1:46 pm
bit of regrowth at the corners after 5 months, buzzing with that
-
jaybee15 September 2025, 7:20 am
crown looks thicker in my photos, slow but its moving
Verified buyer
-
Oskar13 September 2025, 1:02 pm
danke, schnell geliefert
Verified buyer
-
Sander13 September 2025, 1:16 am
solid stuff, been the only thing to touch my crown
Verified buyer
-
Tomas T.10 September 2025, 11:59 am
9 months on it now, hairs better than its been in years. im 24, started losing it at 19
Verified buyer
Folliva Labs repliedClass, really glad its working out for you. Cheers for the write up.
-
karim9 September 2025, 5:23 am
cheap enough and it works, cant ask for more
Verified buyer
-
Diego29 August 2025, 7:28 pm
works if you actually use it every day, its not magic
-
Lars Novak26 August 2025, 1:34 pm
got here in 4 days to lithuania
Verified buyer
-
henrik16 August 2025, 8:28 am
been on it half a year, take a pic every month, the difference month 1 to now is real
Verified buyer
-
Z.B.13 August 2025, 6:07 pm
good stuff quick delivery
Verified buyer
-
Theo12 August 2025, 4:33 am
3 months in and the hairloss has basically stopped. happy with that
Verified buyer
-
david11 August 2025, 10:29 am
first month i thought it was making it worse, turns out thats normal. month 4 now and its clearly better
Verified buyer
-
Niklas M.30 July 2025, 2:05 pm
Fast and discreet, thank you
-
lars29 July 2025, 6:07 am
top service
Verified buyer
-
two_stroke22 July 2025, 12:50 pm
Perfect, thanks
Verified buyer
-
Miguel H.13 July 2025, 11:04 pm
not a miracle but my hair looks fuller than it did, ill take it
Verified buyer
-
Omar J.6 July 2025, 7:31 pm
bit slow to ship but no harm done
-
Niklas27 June 2025, 8:51 pm
Prompt delivery no complaints
Verified buyer
-
M27 June 2025, 3:14 pm
got my package, thanks team
Verified buyer
-
emre_3426 June 2025, 6:49 pm
everything smooth, cheers
Verified buyer
-
V19 June 2025, 12:16 pm
hairline stopped moving back, thats honestly all i wanted
Verified buyer
-
Edvinas D.2 June 2025, 12:12 pm
arrived sealed with a date on it, good to see
Verified buyer
-
Rasmus29 May 2025, 5:00 am
third time buying here, always solid
Verified buyer
-
Sami K.26 May 2025, 7:44 am
good comms and fast dispatch
Verified buyer
-
N.K.22 May 2025, 12:21 pm
started this after two years of fin then minox. fin held my hair but messed with me too much so i stopped. minox was great for like 8 months then all the hair i saved started falling out at once, was grim. this was kind of a last try. first couple months nothing, then around month 3 the shed stopped and by month 6 there was actual regrowth on the crown. not 18 year old hair but way better. one less thing to stress about
Verified buyer
Folliva Labs repliedThanks for writing all that out, genuinely useful for people reading. Glad youre in a better spot with it.
-
Sami G.22 May 2025, 7:18 am
used to weigh out my own powder and it was a nightmare, this is way easier and the same every time
Verified buyer
-
z3ke20 May 2025, 4:34 am
all good, sealed properly
Verified buyer
-
Ruben J.28 April 2025, 11:35 am
shipping quick, product as described
Verified buyer
-
Mikkel Jansen27 April 2025, 5:29 am
shed like crazy the first month and nearly stopped, glad i didnt, its calmed right down now
Verified buyer
-
Mateusz N.13 April 2025, 3:52 pm
honestly was skeptical, expected nothing, quietly surprised its working
Verified buyer
-
Unknown12 April 2025, 3:00 am
Livraison rapide, merci
Verified buyer
-
Theo Kaiser9 April 2025, 2:38 am
the itch went away first, then the shedding slowed down. good so far
-
Tijn M.29 March 2025, 6:35 am
no more hair in the drain in the mornings, big difference for me
Verified buyer
-
Mantas27 March 2025, 5:26 am
ordered monday, here by thursday. nice
Verified buyer
-
L22 March 2025, 3:45 pm
Nice
Verified buyer
-
D9 March 2025, 6:58 pm
a bit greasy if you use too much, less is more. otherwise happy
Verified buyer
-
M.W.26 February 2025, 7:09 am
took me ages to find somewhere in the EU that ships RU without the customs nightmare, so glad i found these guys
Verified buyer
-
Antoine J.15 February 2025, 3:51 pm
Snelle levering, bedankt
Verified buyer
-
nils_k14 February 2025, 7:01 pm
cheers guys
Verified buyer
-
Ruben Vos11 February 2025, 7:18 pm
classic shed then regrowth, you just have to be patient with it
Verified buyer
-
Antoine Vos8 February 2025, 5:40 pm
my hairline was creeping back fast, its stopped now. thats enough for me
Verified buyer
-
Bartek25 January 2025, 9:16 pm
im 28, been thinning since 22, its finally slowed down after 4 months
Verified buyer
-
Julius K.17 January 2025, 9:40 pm
regrowth is patchy but its there, more than the pills ever did
Verified buyer
-
Vytautas P.9 January 2025, 12:00 am
Super quick, thanks alot
Verified buyer
-
T.K.6 January 2025, 9:12 am
fast shipping, thx
Verified buyer
Write a review
BEFORE / AFTER
Real customers. Real regrowth.
BEFORE AFTER
25 months
BEFORE AFTER
5 months
BEFORE AFTER
11 months
Individual results vary. Photos are customer-submitted.
MECHANISM COMPARISON
The options, side by side.
The common ways men treat male-pattern hair loss, compared on mechanism, side effects, evidence and cost.
| Feature | RU-58841Topical antiandrogen | CB-03-01Clascoterone, topical antiandrogen | PyrilutamideKX-826, topical antiandrogen | MinoxidilTopical growth stimulant | Oral finasterideSystemic DHT blocker | Ketoconazole shampooTopical antifungal | GHK-CuCopper peptide, scalp support | Natural topicalsCaffeine, rosemary, saw palmetto | Doing nothingBaseline |
|---|---|---|---|---|---|---|---|---|---|
| Mechanism | |||||||||
| What it acts on | The androgen receptor | The androgen receptor | The androgen receptor | Potassium channels, blood flow | 5-alpha-reductase. Lowers DHT | Fungus. Mildly, the receptor | The scalp skin itself. Not the hormone | Several weak effects. None well mapped | |
| Where it acts | Scalp | Scalp. Broken down there by design, but measurable amounts still reach the blood | Scalp, by design | Scalp. Some absorption | Whole body | Scalp | Scalp | Scalp | |
| Side effects | |||||||||
| No systemic or sexual side effects | PartlyDesigned to break down before it reaches the blood. No human data proves that it does. | PartlyBuilt to break down in the skin, but blood levels measured for their scalp solution are similar to the acne cream's, so a smaller treated area is not a safety argument. In the acne studies 3 of 42 had brief adrenal suppression that cleared after stopping. | PartlyBuilt to act locally. In the trials, safety was no different from placebo. The data is still thin. | YesNot a hormonal drug. Rare heart-rate effects at high doses. | NoLower libido and erectile problems in a minority of men. Most recover after stopping. Some report that they did not. | YesTopical, barely absorbed | YesA topical peptide. It does nothing to hormones, for better or worse. | YesNothing here reaches your bloodstream in any amount that matters | Yes |
| No scalp irritation | PartlyThe alcohol carrier can dry or sting. That is the vehicle, not the compound. | PartlyIn the hair trials local reactions matched the placebo liquid, but the placebo was the same carrier without the drug. The carrier is glycol-heavy and can dry the skin. | PartlyUsually mild, but it does not suit everyone | NoItching and flaking are common. Mostly the propylene glycol. | YesIt never touches your scalp | PartlyCan dry the scalp with regular use | YesGenerally well tolerated on skin. Patch-test anyway. | YesIn the rosemary trial, less itching than minoxidil. | Yes |
| What it does | |||||||||
| Blocks DHT | YesAt the receptor. A non-steroidal molecule. | YesAt the receptor. Same target, a steroidal molecule. | YesAt the receptor. Same target, non-steroidal like RU-58841. | NoIt grows hair by a different route entirely | YesLowers DHT at the source | PartlyA weak antiandrogen at best | NoNot an antiandrogen. It does nothing to DHT. | PartlySaw palmetto is a weak 5-alpha-reductase inhibitor | No |
| An antiandrogen you apply, not swallow | Yes | Yes | Yes | NoTopical, but not an antiandrogen | NoAn antiandrogen, but a tablet | PartlyTopical, weakly antiandrogenic | NoTopical, but not an antiandrogen at all | PartlyTopical. Weakly, and only through saw palmetto. | |
| Stimulates new growth on its own | NoIt takes the brake off. It adds nothing. | NoIt takes the brake off. It adds nothing of its own. | NoSame route. It removes suppression. | YesThis is the one thing it is for | NoSame idea: it removes suppression | No | NoIt looks after the scalp. It does not push growth. | PartlyA little, in small trials. Nothing like minoxidil. | |
| Also works on the scalp itself | No | No | No | No | No | YesClears the flaking and inflammation. The only antifungal here. | YesThis is the whole job of it: the condition of the skin your follicles grow from | PartlySome anti-inflammatory effect. It is not an antifungal. | |
| Evidence and approval | |||||||||
| An approved medicine for hair loss | NoA research compound. No approved human use, anywhere. | NoThe same molecule has been an approved 1% acne cream in the US since 2020, but nothing containing it is approved for hair loss anywhere. Another company is expected to file in 2027. | NoA research compound. No approved use, anywhere. The manufacturer is heading for a filing in China. | YesApproved for male-pattern hair loss | YesApproved, on prescription | PartlyApproved as an antifungal, not for hair loss | NoA peptide sold in cosmetics. No medicine containing it is approved anywhere. | NoCosmetics. Nobody has taken them through approval. | |
| Human evidence behind it | NoNo completed human trials. None. | YesTwo Phase 3 studies, 1,465 men, twelve months. Run by the company taking it through approval, on their formulation, not ours. | PartlyPhase 3 trial data at 0.5% and 1.0%, which puts it ahead of most topicals. The results are the manufacturer's and are not yet published. | YesDecades of randomised trials | YesDecades of randomised trials, and the longest evidence base of anything on this table | PartlyA handful of small studies | PartlyReal human data, but in skin and wound healing. What exists for hair is thin. | PartlyOne small trial matched rosemary oil to 2% minoxidil. Caffeine has a few. That is all of it. | |
| Available without a prescription | YesOnly because there is no approved use to prescribe | YesNo approved hair-loss version to prescribe. The acne cream made from the same molecule is prescription only. | YesSame reason again. There is no approved version to prescribe, anywhere. | YesOver the counter | NoPrescription only. A doctor has to agree. | Partly1% over the counter. 2% is usually a prescription. | YesNo approved medicine here to prescribe | YesAny shop, any time | |
| Living with it | |||||||||
| If you stop | Loss resumes | Loss resumes | Loss resumes | Shedding within weeks | Loss resumes | The flaking comes back | The scalp goes back to how it was | Back to baseline | |
| Daily effort | Once a day | Twice a day | Once a day | Once or twice a day | One tablet | Two or three times a week | Once a day | Daily, or every wash | None |
| Cost per month, roughly | €40–50 | €145 at 2.5%, €230 at 5% | €60–90 | €20–60 | €10–20 | €5–10 | €90 | €10–25 | €0 |
A comparison of mechanisms, not medical advice. Minoxidil and finasteride are approved medicines with decades of randomised trials behind them, and finasteride has the longest evidence base of anything here. RU-58841, CB-03-01 and pyrilutamide are research compounds: none of them is an approved hair-loss medicine today. The Phase 3 figures quoted for clascoterone come from the formulation another company is taking through approval, not from ours, and no cortisol data from those hair trials has been published. The pyrilutamide trial results come from the manufacturer and are not yet published. GHK-Cu is a copper peptide included here as scalp support, not as a regrowth treatment. The natural column covers topical caffeine, rosemary oil and saw palmetto, where the human data is real but thin. Prices are rough monthly estimates and vary by dose, bottle size and brand, and each assumes the routine on that product's own page. Speak to a doctor before you start or stop anything.
FAQ
Questions, answered.
When will I see results?
Six months is the earliest point at which a fair judgement is possible, and it has to be made against photographs, not memory. Anything before that is mood. The month-by-month timeline is here.
Are there side effects?
What gets reported: scalp irritation, dryness and flaking, redness where it is applied. Most of that tracks the carrier rather than the compound. What nobody can give you is a real safety profile — the long-term human trials were never run. Patch test before it goes near your head, and stop if you react. More here.
How do I know it's genuine?
We blend it ourselves in the EU — it is not rebottled, not dropshipped, and it does not sit in a warehouse. Every bottle carries its batch number, blend date and expiry, so you always know how old the thing in your hand is. RU-58841 degrades with time; a fresh batch matters more than most people realise.
Shipping and returns?
Shipped from the EU, usually 3–5 days. Unopened bottles can be returned within 14 days.
Science articles
Read before you start.
What the research actually says about hair loss, DHT, and the compounds people reach for.
