For Flakes · Grease · Itch · Shedding
★★★★★ 4.9 average · 1,213 verified reviews · 60-Night Black Shirt Guarantee
Flakes on the black shirt by lunch. Roots greasy again by 4pm on a wash day. The itch you scratch in meetings. A little more hair in the drain every year. Four problems, one cause: a layer of hardened oil and dead skin over the follicles that shampoo has never reached. Kamiyu is the first thing that washes it.
Lint roller in my desk. Lint roller in my car. Lint roller in the hall closet. If that is you, listen: the rinse water ran GREY the first night and I had washed my hair that same morning. The itch was gone by week two. Get the whole box and throw the rollers away.
一Watch what your fingers actually do
Shampoo is built for hair, and hair is what your fingers wash. The skin underneath, where the oil is made and hardens around each follicle, never gets touched. The dome puts the same shampoo where your hands cannot reach, then warms it, kneads it and runs red light at the root.
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Seen In Real Showers
Real customers, real bathrooms, the first nights with the dome. Tap a video for sound.
You Are Not Imagining It
Three washes a week since you were fifteen is 3,900 washes, and not one of them cleaned your scalp. Four symptoms, one root cause: the sebum plug. Trichologists call it buildup. We call it the plug, because that is what it does.
START TONIGHT · FROM $89 →Why Nothing Has Worked
Dandruff shampooStrips the surface, misses the plug, and dries the scalp until it doubles its oil in defense. The flakes come back with backup.
Growth serumsGood actives, wrong landing zone. On a plugged scalp your serum sits on the wax, not the wick. Fertilizer poured on pavement. Keep the bottle. It was never the problem. The surface it landed on was.
Fingernails + plastic brushesThey scratch the surface and inflame the skin. A head spa therapist never scratches. They knead. Pressure, rotation, at the root, under water.
The $150 salonIt genuinely works. Once. Then the plug rebuilds inside two weeks, and the front desk knows it: they book your next visit before you reach the door. A salon reset lasts about a week. A nightly practice keeps it. $3,900 a year, if you keep going back.
Every one of these is still in the cupboard. Not one of them ever reached the skin.
Introducing
The Japanese Scalp Reset: every tool of the $150 head spa, rebuilt to run inside the shampoo you already take. The first scalp wash of your life happens tonight.
84 kneading nodesa therapist's fingers, counter-rotating
Onsen warmthsoftens the plug first
Red light 630-680nmat the root, under water
IPX7 waterprooflives in the shower
USB-C, cordlessone charge, a week of nights
10 minutes a nightinside the wash you already take
Ten minutes, in the shower you already take. Four moves, same order as the salon.
The Second Half
Regular shampoo is built for hair. It coats the lengths in conditioning film and is off your scalp in seconds. That film is what the plug rebuilds on. The Tea Tree Scalp Wash is built for skin.
Australian tea tree oil, the plant extract that calms the yeast living on every adult scalp. Nothing perfumed on top of it.
No silicones, no conditioning polymers, no film. Nothing is left on the skin for the plug to rebuild on.
No sulfates, parabens, dyes or synthetic fragrance. Gentle enough for every night, because this is a nightly practice.
Balanced to the scalp, pressed on with the applicator, worked in by the dome for ten minutes. The hair gets clean on the way.
In The Box
The Kamiyu Dome+84 silicone nodes on counter-rotating heads knead the way a head-spa therapist's hands knead: pressure, rotation, at the root, under water. Onsen warmth softens hardened buildup, and 630-680nm red light lands where it matters. IPX7, it lives in the shower.
The Tea Tree Shampoo+The wash the salon protocol uses. Tea tree oil cuts through grease and buildup while the dome presses it into the skin, not the hair. Your plan below includes one bottle per month.
The Scalp ScopeFREE+A magnifying camera that shows your scalp on your phone. The salon shows you your scalp once, then charges $150 to show you again. Night 1 vs night 30, on your own screen.
The Scalp ApplicatorFREE+Hollow silicone teeth press shampoo directly onto the skin, under the hair, the way a salon applies it to a parted scalp. Never rubbed into hair and hoped.
The Gua-Sha CombFREE+Solid acacia, combed through dry hair before any water. It opens a path so the cleanser can reach the skin itself, the same second step you get in the salon chair.
1-Year Dome WarrantyFREE+It breaks, we replace it. One year, no questions, covered door to door.
All four gifts ship free with the 6-Month Reset. Pick your plan below.
Bought this for my own flakes, and my husband made fun of it for a week. Then he used it once and now we argue about whose turn it is. I do not know how to describe it except my head feels decompressed after. Ordering the second dome so we stop fighting.
Kami, hair. Yu, bath. The Japanese practice of washing the scalp itself, not just the hair. Tokyo salons have done it for decades. American salons charge $150 a session for it. Now it runs in your shower.
Before You Choose
Dana K.Columbus, OH · Verified buyerI photographed my part every Sunday to prove to my dermatologist it was getting worse. These are three Sundays apart. Same bathroom, same light.
WEEK 0WEEK 3
Simone R.Hoboken, NJ · Verified buyerMy roots used to be finished by two in the afternoon. I still wash the same amount. It just stopped coming back so fast, and the part stopped showing pink.
WEEK 0WEEK 6
Priya S.San Jose, CA · Verified buyerI did not change anything else. Not the shampoo, not how often I wash. The catch used to look like the left every single morning.
WEEK 0WEEK 4
Rachel M.Austin, TX · Verified buyerSix-week appointment. She parted it under her light and asked what I was using. Nothing new, except this. This is the part she was looking at.
WEEK 6| KAMIYU | Dandruff shampoo | Growth serum | $150 head spa | |
|---|---|---|---|---|
| Clears the sebum plug | ✓ | ✗ | ✗ | ✓ |
| Works at the follicle, under water | ✓ | ✗ | ✗ | ✓ |
| Every night, at home | ✓ | ✓ | ✓ | ✗ |
| Breaks the oil-rebound cycle | ✓ | ✗ feeds it | ✗ | ✓ |
| Cost, year one | $89 once | $180+ | $720+ | $3,900 |
| Cost per night | 24¢ | 49¢ | $1.97 | $10.68 |
The cheaper option is the one that actually fixes it. And year two costs nothing: the dome does not run out.
Choose your Scalp Reset
Every plan ships the Dome. You pick how many months of Tea Tree Scalp Wash come with it.
DomeYours
6 Wash6 months
ScopeFREE 
CombFREE 
ApplicatorFREE 
GuideFREE 
WarrantyFREE 
DomeYours3 Wash3 monthsScopeFREE CombFREE ApplicatorFREE GuideFREE WarrantyFREE 
DomeYours1 Wash1 monthCombFREE ApplicatorFREE Your first rinse runs grey tonight. That is the buildup leaving.
✓ 60-Night Black Shirt Guarantee · ✓ 1-Year Device Warranty · ✓ Ships within 48 hours
Doing this together? His & Herstwo full kits · every gift doubled · one order$199 →
Answers, before you decide
Everything people ask before they add it to the cart.
Three things working at once, which is what makes it a treatment and not a wash: 84 counter-rotating nodes that knead the way a therapist kneads, onsen warmth that softens hardened buildup so it lifts instead of smearing, and 630-680nm red light delivered at the scalp itself. That is the $150 session, minus the chair.
Yes. That is the point. Anti-dandruff shampoo only works if it reaches scalp skin, and it usually rinses off in seconds. Lather, then knead it in with Kamiyu. Zinc, ketoconazole, salicylic acid: whatever your shampoo uses, it finally gets contact time.
Flakes, grease by 4pm, the itch, more hair in the drain: they look like four problems but they start in the same place, the buildup at the root. That is the surface Kamiyu clears, whichever mix of the four you have. One honest exception: if you have psoriasis, eczema, open sores, or you are under a dermatologist's care for a scalp condition, check with them first. We would rather lose the sale than pretend otherwise.
The first flush shows you immediately: the rinse water tells the story. Itch and grease usually calm within the first two weeks. Shedding is a slower system, give it the full 60 nights, which is exactly what the guarantee covers.
Three steps, inside the shower you already take. Comb it through dry to open a path. Fill the applicator and press the shampoo onto your scalp, not your hair. Then ten minutes with the dome and rinse. The only new thing is where the shampoo goes.
IPX7. It lives in the shower. Rinse it under the tap when you rinse yourself. It charges by USB-C between sessions.
Yes. The system treats the scalp, not the strands. The shampoo goes on at the root and rinses clean. Nothing in the system strips color.
The device's fingers work at the scalp, under the hair, and the method was built shower-wet. For protective styles, use the applicator along exposed partings and the dome on wash days.
The Dome will work whatever shampoo you own into the scalp, so tonight is covered either way. But regular shampoo is built for hair: it coats the lengths and leaves the film that hardens back into the plug. The Tea Tree Scalp Wash is built for the skin, so it keeps the follicle open once the Dome has cleared it. That is why every plan ships with it, and why the 3 and 6 month plans carry the supply.
Because you almost certainly already own one, and it was never the problem. The surface it landed on was. Kamiyu is the tool set that clears that surface. Put your minoxidil, your rosemary oil, your $60 peptide serum on a cleared scalp and it reaches skin instead of buildup. The device even has a cabin you fill with your own.
Sixty nights is how long it takes to clear a plug that took years to build. Run the reset for 60 nights, counted from the day yours arrives. Then wear the black shirt you stopped wearing and look at your shoulders. If you do not love what you see, one email to hello@trykamiyu.com refunds every cent, and we pay the return shipping. No forms. No fights. Less than 1% of our customers have ever asked.
Free shipping on every order, out of Cheyenne, Wyoming within 48 hours, with tracking the moment it leaves. Returns are the guarantee: 60 nights, full refund, we pay the return label. A real person answers hello@trykamiyu.com inside one business day.
Why Kamiyu Exists
My name is Nao Kurihara. For twelve years in Japan I washed scalps for a living, six days a week, and scanned every one onto a screen before I started. For most people it was the first time they had ever seen their own scalp. Then I did the work. It worked. And four weeks later they were back in the chair with the same scalp, because the hour never survived the drive home.
Kamiyu is that hour, rebuilt for your shower. The scan is in the box, so this time the after picture is yours.
四Verified Reviews
★★★★★ 4.9 average across 1,213 verified reviews · photos are theirs
Claire B.US · 3 reviews
All of it went on my hair. The flakes were never on my hair. They were coming off the scalp, which I had never once washed properly. Kamiyu changed my LIFE. People are giving me compliments on my hair!
Date of experience: July 26, 2026
Sandra P.US · 2 reviews
I almost filmed it for my group chat. Three weeks in, my part does not itch at 3pm anymore and the little brush I carried in my purse for emergencies stays home. I did not tell anyone what changed. They keep asking anyway.
Date of experience: July 30, 2026
Diane H.US · 1 review
I threw out three dark tops last year because I was tired of checking my shoulders in the car mirror. Week four with this thing: I bought a black cardigan on purpose. At my age you do not expect a shower gadget to win an argument your dermatologist lost.
Date of experience: August 5, 2026
Brianna L.US · 6 reviews
Charge it on the counter, not in the caddy, and you will be fine. Everything else is honestly annoying how well it works. The itch was gone by night six and my blowouts last two days longer. Fix the cable and I will change this.
Date of experience: August 6, 2026
The rinse water ran grey the first night. Grey. I sat on the edge of the tub and stared at it, because I have washed my hair every other day for thirty years. That photo is the proof.
Priya S. · night 1✓ Verified
My roots used to be finished by two in the afternoon. Wash at seven, hair up by lunch so nobody could see the part. This photo is day three. No dry shampoo, no root powder, nothing.
Simone R. · night 24✓ Verified
Post-workout used to be the worst of it. Sweat, the itch, and flakes on the black tee before I even got to my car. Hand in my hair at the gym now and nothing under the nails.
Andre P. · week 3✓ Verified
Nine years on the same medicated shampoo and I was not giving it up for a gadget. So I did not give it up. Same bottle, same routine. The only change is that it lands on the skin now instead of the lengths. The itch went first, around night nine. The flakes took until week four.
Bridget A. · night 31✓ Verified
I have hair past my waist and it is thick. I was sure the heads would never reach the actual scalp through all of it. You part it into four sections and work one at a time, which is what the card in the box says. It reaches. That was the whole worry and it is gone.
Marisol D. · night 29✓ Verified
Four stars because the charging cable in the box is shorter than I would like. The device itself? Annoyingly good. The itch stopped in week one and my blowouts last two days longer. Longer cord and it is five.
Kayla D. · night 22✓ Verified
Sixty nights, counted from the day yours arrives. Put the black shirt back on. If your shoulders are not clean, send it all back for every cent. No forms. No fights. One email does it.
Less than 1% of our customers have ever asked.
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For anyone on the fence about the guarantee, I actually tested it. Emailed on night 40 because I wasn't sure the shedding had slowed. They told me to finish the 60 nights and refund me either way if I wanted. I kept it. Drain catch says it's working.