Block DHT. Stop hair loss. Start regrowth.
✓ Dermatologist Recommended
4,8 — 2.347+ reviews

Root Cause Tri-Activa™ DHT-Blocker Shampoo

  • Blocks DHT at the root — the hormone switching off your follicles.
  • Visible results in 12 weeks, or your money back — no questions asked.
  • No minoxidil. No finasteride. Without the medication side effects.
Choose your treatment: Full treatment = best result
A Tri-Activa™ treatment lasts 3 months. That's the time follicles need to respond.
In stock · Free delivery before
FREE shipping from 3 bottles
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90-day money-back
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100% natural

The real cause

Hair loss isn't bad luck — it's a process.

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Our Formula

Tri-Activa Root Formula

Three actions. Four ingredients. One formula that tackles hair loss at the source.

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How the treatment works

One action. Three steps. Ninety days.

No pills, no creams, no hassle. Just shower — like you already do.
1

Wash your hair, like normal

4× per week. Massage the shampoo into your scalp for 60 seconds — that activates the Tri-Activa™ formula.

2

DHT gets blocked

Licorice root and black sesame block 5-alpha-reductase — the enzyme that converts testosterone into hair-loss-causing DHT.

3

Your hair comes back

Ginseng and Eclipta activate dormant follicles. Week by week, you see less shedding and new hair appearing.

The numbers speak for themselves

Based on 2,347+ verified users

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*based on self-reported data, 2023–2025

What to expect

12 weeks of transformation

What 2,347+ men reported, week by week

StartBEFOREWeek 0

Start

Thinning crown and noticeably more hair in the shower.

Less sheddingWEEK 4Week 4

Less shedding

Shedding decreases, crown looks denser.

New growthWEEK 8Week 8

New growth

Fine baby hairs at the hairline become visible.

Fuller hairWEEK 12Week 12

Fuller hair

Visibly fuller, thicker hair — and the confidence that comes with it.

Real men · Real results

You're not the only one —
and you don't have to solve this alone.

★★★★★ 4.8/5 · 2,347+ verified reviews
★★★★★

After 12 weeks, my wife noticed

"This really works." That's what my wife said after about three months. I saw it myself earlier in the shower — far less hair on the tiles. Now, after half a year, my crown is visibly fuller. Should have found this 5 years earlier.

After 12 weeks, my wife noticed
P
Peter V.
47 · Utrecht
Verified
★★★★★

Finally out the door without a cap

Years of struggling with minoxidil — every time you stop, it all comes back. Root Cause is the first thing I use in the shower and think: this isn't work, this is just shampoo. And it works. Going outside without a cap again, after 4 months.

Finally out the door without a cap
D
Dennis K.
38 · Rotterdam
Verified
★★★★★

Started skeptical — now a fan

Honestly: I ordered this thinking "I'll just get my money back". After 6 weeks there was noticeably less hair in my brush. After 3 months I saw in photos that my hairline was stable — for the first time in years. I'm sticking with it.

Started skeptical — now a fan
M
Mark B.
41 · Antwerpen
Verified

Honest comparison

Root Cause vs. the alternatives

Why men make the switch

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Mark Huizenga

Our Story

Mark Huizenga

Chemist & Co-founder

When I noticed my hairline receding at 35, I thought I just had to live with it. I tried everything — minoxidil, biotin, expensive clinics. Nothing addressed the real cause. So I went to work on it myself. Seven years later, Root Cause is here — the formula I wished I had years ago.

I didn't make this to sell a product. I made it because I needed it myself.

90
Days
Money back
Your risk = zero

Try it 90 days.
Doesn't work? Full refund.

We believe in our formula. You don't have to, upfront. Use Root Cause for 90 days. See no difference? Send one email — we refund the full amount. Including shipping. No returns, no forms, no questions.

  • Full amount refunded
  • No questions asked
  • Shipping included
  • Dutch customer service
Frequently asked questions

Everything you want to know before you order.

Don't see your question? Send an email to info@rootcausemen.com — we reply within 1 business day.

When will I see the first results?

Reduced shedding is usually noticeable within 3–4 weeks. New baby hairs become visible around day 45–60. Visibly fuller hair appears after a full 90-day treatment. That's why we strongly recommend the 3- or 6-bottle pack — with one bottle you just see the first change, and then you don't want to stop.

What if it doesn't work for me?

Then you get every euro back. You have 90 days to test. If it doesn't work, email info@rootcausemen.com and we refund the full amount — including shipping — within 5 business days to your account. You don't even need to send back the empty bottles.

Are there side effects?

No. Root Cause is 100% plant-based, dermatologically tested, and contains no minoxidil, finasteride, or synthetic hormones. No 'shedding' like with minoxidil, no dependency, and no medication-associated side effects. For skin irritation (rare) you simply stop and use the 90-day guarantee.

Do I have to keep using this for the rest of my life?

Unlike minoxidil and finasteride: no. Because Root Cause addresses the cause (DHT) instead of masking symptoms, results are largely maintained even if you stop. Most users switch to a maintenance schedule of 2× per week after 6 months.

Is this a subscription?

No. One-time purchase, no hidden renewal, no monthly charges. Want to reorder? You do it yourself, whenever you want. With the 6-bottle pack, you have enough stock to not look at an order page for half a year.

How fast is shipping?

Order before 10pm? Your package is at your door the next business day (Netherlands) or within 2 business days (Belgium). Discreetly packaged — no mention on the outside. Free from the 3-bottle pack.

Why is this only available through this page?

The discount and free scalp brush gift are a one-time offer for men who read the article. On our regular webshop you pay the full price. Close this page and the offer expires — you won't see this price again.

What type of hair loss does this work for?

Root Cause is developed for androgenic alopecia — the most common form of male hair loss, caused by DHT. This includes crown thinning, receding hairline, and overall thinning hair. For alopecia areata (patchy) or telogen effluvium (stress-related) it's less effective — consult a dermatologist if in doubt.

Does it work if I've already lost a lot of hair?

What matters is whether your follicles are still alive. If your scalp still has a shadow or fine vellus hairs, the follicles are still there — just dormant. Root Cause can wake them up. Completely bald terrain (shiny skin, not a single hair) will not revive. A good indicator: can you see tiny hairs under bright light? Then there's work to do.

Can I combine it with minoxidil or finasteride?

Yes, there are no known interactions. Many men use Root Cause to taper off medication (DHT blockade is already covered) or alongside existing treatment as additional support. Consult your doctor if you're on prescription medication.

Your next step

Tackle the cause —
starting today.

You know how DHT works. You know how to block it. You have 90 days guaranteed to see for yourself if it works for you — risk-free.

Order now →
🛡️ 90-day money-back · Free shipping · Shipped today