Support thicker-looking hair in just 15 minutes a day.
The same 660nm + 850nm light therapy used in €100-per-session dermatology clinics — now designed as a hands-free cap you wear while you read, work, or make coffee.
improvement in hair density reported in peer-reviewed 660nm + 850nm light-therapy studies over 16 weeks of consistent daily use.
Reference: Lanzafame et al., Lasers Surg. Med. 2014. Individual results vary. Klenvox is a wellness device.
No pills. No prescriptions. No daily topicals that stain your pillow. Just light — the same kind dermatologists have studied for 20+ years.
Put it on after your morning coffee. Wear it while you answer emails. Auto shut-off so you never think about it twice.
110 medical-grade LEDs sit directly against the scalp. Dualwave™ 660nm + 850nm designed to support scalp circulation and a healthy growth cycle.
A one-time purchase — not a subscription. The cap lasts years. Most customers tell us it's the easiest habit they've ever kept.
Your hair follicles absorb red light the same way plants absorb sunlight — as fuel.
The Dualwave™ system delivers two specific wavelengths of light (660nm and 850nm) that have been studied for decades in dermatology. They're designed to support blood flow to the scalp, activate cellular energy (ATP), and extend the natural growth phase of each follicle.
You don't feel anything. You don't do anything. You just wear it — and the light does the quiet work in the background.
Low-level light therapy (LLLT) has been studied in peer-reviewed dermatology literature for over two decades. Klenvox combines the two most-researched wavelengths into a single hands-free session.
"The combination of 660nm and 850nm is where the most compelling evidence for follicle support lies. A well-designed home device at the right irradiance makes consistent daily use realistic — which, for LLLT, matters more than anything."
Red light therapy is cumulative. Consistency beats intensity. Here's a realistic timeline reported by customers.
Fewer hairs on the pillow and in the shower drain. Scalp feels less tight.
Short, fine new hairs begin showing at the hairline and crown. Existing hair feels thicker to touch.
Visible improvement in density and scalp coverage in photos. Styling holds better.
Continued maintenance keeps the new growth cycle supported. Reduce to 3–4 sessions per week.
Individual results vary. Outcomes depend on age, genetics, and consistency of use. Klenvox is a wellness device and is not intended to diagnose, treat, or cure any medical condition.
In-clinic LLLT: €80 per session × 20 sessions = €1,600. A year of minoxidil: €360 — every year, forever. A hair transplant: €3,000–€8,000. Klenvox: €67, once.
| Klenvox | Minoxidil | Hair Transplant | In-Clinic LLLT | |
|---|---|---|---|---|
| Total cost | €67 · once | €30/mo · forever | €3 000 – €8 000 | €80 × 20 sessions |
| Daily effort | 15 min, hands-free | 2× daily topical | N/A | Clinic visits |
| Side effects | None reported | Dryness, itching, shedding | Surgical risk, downtime | None |
| If you stop | Gradual return | Losses often accelerate | Permanent | Effects fade |
| At-home | Yes | Yes | No | No |
I've tried rollers, shampoos, everything. Nothing stuck. This is the first thing that actually made a difference. I used to stress about my hair every morning; now I don't even think about it.
Twenty minutes a day, and that's it. I didn't expect much, but by month three my scalp wasn't visible in photos anymore. Confidence back.
Don't expect overnight. But by week six I noticed less shedding in the shower. Fits my routine. The 20-min auto shut-off is smart.
110 Dualwave™ LEDs, obsidian finish, adjustable up to 62 cm.
Full charge in 3 hours, up to 130 minutes of sessions.
Soft-touch dust bag for travel and storage.
A 30-page manual on building the habit that actually sticks.
Most customers report reduced shedding within 4–6 weeks. Visible thickness and new baby hairs usually appear around weeks 8–12. Red light therapy is cumulative — consistency is more important than session length.
Yes. LLLT has one of the highest safety margins of any wellness technology, with decades of peer-reviewed research. The cap is CE-certified, RoHS compliant, flicker-free, and low-EMF. No UV, no heat, no known side effects at the recommended 10–25 minute daily session.
Designed to support scalp health and the natural hair-growth cycle for people experiencing thinning, shedding, or slow regrowth — including androgenic and hormonal thinning. Less effective on fully bald zones where follicles are no longer active. If unsure, that's what the 365-day guarantee is for.
Yes. Unisex by design, and fits head sizes up to 62 cm. Postpartum thinning, hormonal shedding, and male-pattern thinning are the three most common use cases.
Yes — red light therapy is non-pharmacological and generally pairs well with topical treatments. Many studies suggest complementary effects. Please consult your physician if you're on prescription treatment.
Use it consistently for up to 365 days. If you're not satisfied, send it back for a full refund — no partial refunds, no restocking fees, no questions. We pay return shipping inside the EU.
We ship from our EU warehouse in Germany. Free shipping on orders over €45 across the EU, UK, Switzerland, and Norway. 2–4 working days. VAT included. No customs fees.
Take a full year. Use it every day. If by day 365 you haven't seen a difference, send it back — we'll refund the full amount, cover return shipping, and wish you the best.
No restocking fees. No "did you use it enough" questions. It's the longest guarantee in the category because it's the only one that made sense for a product built on consistency.