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yuki tongue scraper
4.8 (2,104 reviews)

Loved by dentistsjapanese chewing gum

Backed by science. Built on ingredients studied in 70+ peer-reviewed papers. See the research →

  • 91% saw visibly whiter teeth in 30 days
  • 8 active ingredients in every piece
  • Rebuilds enamel with the mineral it's made of
  • Try it for 30 days — love it or get a full refund
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30-Day Money-Back Guarantee

Chew it for 30 days. No results? Full refund — even if the tins are empty.

What you'll notice

From the first piece: breath that stays fresh for hours, teeth that feel smoother and cleaner, and a smooth lift of focused energy.

Within 2-3 weeks: visibly whiter teeth, less sensitivity to cold, stronger-feeling enamel, less plaque and healthier-looking gums.

One piece of gum. Three jobs: whiter teeth, stronger enamel, fresher breath. No new habit.

How to use
  • Chew 1-2 pieces a day — after meals, with your morning coffee, or whenever you want a reset.
  • Chew each piece for 15-20 minutes. The longer it stays in your mouth, the longer the minerals work.
  • 2 packs (48 pieces) last about 3-4 weeks at 2 a day. Most people grab 4+ packs so they never run out.
  • Contains natural caffeine from guarana. Not for children under 12. Recommended 16+.
Ingredients
  • Nano-Hydroxyapatite — the mineral your enamel is made of. Fills micro-cracks and rebuilds from within.
  • Sodium Phytate & Sodium Hexametaphosphate — lift coffee, tea and wine stains without bleach.
  • Zinc Citrate & Zinc Gluconate — neutralize the sulfur compounds behind bad breath.
  • Xylitol & Erythritol — sweet taste, zero sugar; they starve cavity-causing bacteria.
  • Guarana — natural slow-release caffeine. No jitters, no crash.
  • L-Theanine — keeps the energy calm and focused.
  • Vitamin B12 — supports natural energy and brain function.

No peroxide. No sugar. No aspartame. Vegan. Gluten-free.

Is yuki right for me?

I have fillings, crowns or veneers. Yes — yuki doesn't bleach or scrub. It works with your dental work, not against it.

My teeth are sensitive. That's exactly who it's for. Nano-hydroxyapatite is studied for reducing sensitivity over time.

Do I still brush? Yes. yuki works between brushings, not instead of them.

Is it worth the price? It replaces whitening strips, mouthwash, mints and your afternoon coffee — for about $0.62 a piece.

How it works

What happens while you chew

The Japanese 4-step enamel ritual — from the first chew to all-day protection.

1
Step 1

Coats your teeth

As you chew, the minerals mix with your saliva and spread over every single tooth.

2
Step 2

Kills bad breath

The zinc complex neutralizes the odor-causing compounds on contact — at the source.

3
Step 3

Rebuilds enamel

Nano-hydroxyapatite, the mineral your teeth are made of, fills tiny gaps and makes enamel stronger.

4
Step 4

Builds a shield

Xylitol and sodium phytate help block new stains and cavity bacteria from settling in.

Swipe to see more

Your first 60 days

Transform in 60 days

Real results you can see and feel. Here's what to expect when you chew yuki every day.

60days to a stronger, whiter smile
DAY 1 Feel it instantly

A snow-cold kick, instantly fresh breath, and a mouth that feels clean for hours.

88% noticed fresher breath on day one
DAY 7 Stronger with every chew

Cold drinks stop stinging as sensitivity starts to fade.

86% felt less sensitive teeth
DAY 30 See it in the mirror

Coffee and wine stains fade. Your smile looks brighter — and people notice.

91% saw visibly whiter teeth
DAY 60 Enamel rebuilt

Two months of daily remineralizing helps fill the weak spots where cavities start.

70% said their dentist noticed a difference
Science-backed formula

Look inside a piece of yuki

Sugar-free Vegan Aspartame-free Gluten-free
★ Hero ingredient
Nano-Hydroxyapatite
🦷 Enamel hero

Nano-Hydroxyapatite

The exact mineral your teeth are made of. Fills micro-cracks, remineralizes enamel and naturally brightens.

Sodium Phytate
✨ Gentle whitening

Sodium Phytate

Lifts coffee, tea and wine stains — no bleach, no scrubbing, no sensitivity.

Zinc Complex
🌬️ Breath shield

Zinc Complex

Fixes bad breath at the source instead of masking it, so freshness lasts hours, not minutes.

Xylitol + Erythritol
🛡️ Cavity defense

Xylitol + Erythritol

Sweet taste, zero sugar. Cavity bacteria can't feed on it — so they starve.

Guarana
⚡ Clean energy

Guarana

Natural slow-release caffeine for a smooth lift. No jitters, no crash.

L-Theanine
🧘 Calm focus

L-Theanine

The calm-focus compound from Japanese green tea. Smooths the energy into clear focus.

Vitamin B12
🧠 Brain fuel

Vitamin B12

Supports natural energy and normal brain function.

Swipe to see more

Why yuki

Pricey gum. Cheap oral care.

See how yuki replaces half your bathroom cabinet.

Skip the strips, gels and the $500 dentist whitening.

yuki

yuki

★ The smart choice
  • Brightens naturally
  • Zero sensitivity risk
  • Rebuilds enamel
  • Works anywhere, anytime
🧴

Whitening strips

Harsh and temporary
  • Bleaches the surface
  • Causes sensitivity
  • Wears enamel down
  • Fades in weeks

30 seconds of burn vs hours of real freshness.

yuki

yuki

★ The smart choice
  • Fresh breath for hours
  • Kills odor at the source
  • No burn, just a snow-cold kick
  • Repairs enamel while you chew
  • One tin in your pocket
🫧

Mouthwash

Masks, doesn't fix
  • Freshness gone in an hour
  • Masks, doesn't fix
  • Burns
  • Kills good bacteria too
  • 30 seconds and it's over

Same habit. Completely different result.

yuki

yuki

★ The smart choice
  • Rebuilds enamel
  • Fights cavity bacteria
  • Sugar- and aspartame-free
  • Fresh for hours
  • 4 hours of clean energy

Regular gum

Flavor and nothing else
  • Zero dental benefit
  • Sugar or aspartame
  • Fresh for 10 minutes
  • Cheap fillers

Energy that's good for your teeth, for once.

yuki

yuki

★ The smart choice
  • Smooth slow-release caffeine
  • No crash, no jitters
  • Good for your teeth
  • Zero sugar
🥤

Energy drinks

Sugar, crash, acid
  • Sugar spikes
  • The 3 pm crash
  • Acid that attacks enamel
  • Stains your teeth
The Japanese secret

Japan figured this out 40 years ago.

Most Americans have never heard of hydroxyapatite. In Japan, it's been a go-to for stronger, whiter teeth for decades.

1970s

A Japanese company acquires NASA's research on hydroxyapatite — the mineral that makes up bones and teeth.

1980

Hydroxyapatite lands in Japanese toothpaste.

1993

Japan officially recognizes it as an anti-cavity ingredient.

Today

Now in a gum you chew after coffee — no new habit.

yuki brings that Japanese formula to the easiest habit there is: chewing gum.

The research

Backed by science. Not by hype.

Every active ingredient in yuki has been studied, published and used in oral care for decades. We cite the research so you can check it yourself.

Nano-Hydroxyapatite

A calcium phosphate that mirrors natural enamel. Studied to remineralize early lesions, reduce sensitivity and whiten gradually — no bleach, no abrasion.

  • Clinical trial, 2014 (J Clin Dent): hydroxyapatite gum cut tooth sensitivity by about half in 2 weeks vs. a placebo gum. View study ↗
  • In-mouth study, 2023 (J Mech Behav Biomed Mater): nano-hydroxyapatite gum raised calcium levels in enamel vs. plain gum. View study ↗

Sodium Phytate & Hexametaphosphate

Bind to the tooth surface to lift stains and stop new ones from setting — a non-peroxide way to brighten.

  • Clinical trial, 2006 (J Clin Dent): gum with sodium hexametaphosphate reduced new tooth stain by 33% over 12 weeks. View study ↗
  • Clinical trial, 2002 (J Clin Dent): sodium hexametaphosphate removed 29% more surface stain than regular toothpaste. View study ↗
  • Clinical trial, 2025 (Clin Oral Investig): sodium phytate made teeth measurably whiter in 3-4 weeks. View study ↗

Zinc Citrate & Gluconate

Neutralize the sulfur compounds that cause bad breath and slow the bacteria that make them.

  • Clinical trial, 2012 (J Clin Dent): zinc gum cut bad-breath sulfur compounds by about 51% right after chewing. View study ↗
  • Systematic review, 2017 (J Breath Res): zinc chewing gums reduced bad-breath compounds across 10 trials. View study ↗
  • Clinical trial, 2025 (Indian J Dent Res): zinc cut bad-breath compounds for over 2 hours. View study ↗

Xylitol & Erythritol

Sugar alcohols oral bacteria can't ferment, linked to less plaque and fewer cavities in long-term studies.

  • Meta-analysis, 2017 (J Nat Sci Biol Med): xylitol reduced cavities across 16 studies. View study ↗
  • Systematic review, 2024 (Eur Arch Paediatr Dent): xylitol gum significantly reduced cavities in children and teens. View study ↗
  • 3-year clinical trial, 2014 (Caries Res): erythritol led to fewer cavities than xylitol or sorbitol. View study ↗
Our happy customers

Loved by 50,000+ smiles

Real people, real routines — here's what they noticed.

4.8
Based on 2,104 reviews
5 star
79%
4 star
15%
3 star
4%
2 star
1%
1 star
1%
Jake Verified buyer

Week 4 and my coffee stains are actually fading. I chew one after every coffee now — easiest habit I've picked up.

Madison Verified buyer

My breath stays fresh all afternoon. Obsessed with Frosted Strawberry, and the little energy lift is a bonus.

Ryan Verified buyer

Cold drinks don't sting anymore. I keep a tin in the car. Solid product.

30DAY

Our 30-day “Whiter or Free” guarantee

We're confident yuki will earn a place in your pocket. Chew it daily for 30 days. If you don't love your results, email us and we'll refund you in full — even if the tins are empty. No hoops, no fine print.

STEP 1Chew yuki every day for 30 days.
STEP 2Not happy? Send us one email.
STEP 3Get 100% of your money back.
Questions

Frequently asked questions

What does yuki actually do?

Three things at once: it rebuilds enamel with nano-hydroxyapatite, lifts coffee and wine stains with sodium phytate, and keeps your breath fresh for hours with zinc. Plus a clean lift of energy from guarana, L-theanine and B12.

Can gum really whiten teeth?

Yes. yuki uses nano-hydroxyapatite, the mineral your enamel is made of, plus sodium phytate to lift surface stains. Japan has used hydroxyapatite in oral care for over 40 years.

Is it safe with fillings, crowns or veneers?

Yes. No bleach, no abrasives.

Does it contain caffeine?

Yes, natural caffeine from guarana. Not for children under 12; recommended 16+.

When will I see results?

Fresh breath: right away. Whiter teeth: usually 2-3 weeks. Deeper stains: 4-6 weeks.

How many pieces a day?

1-2, for 15-20 minutes each. More chewing, faster results.

Do I still need to brush?

Yes. yuki works between brushings, not instead of them.

How long does shipping take?

Orders ship within 24-48 hours. Delivery takes 5-8 business days.

What if it doesn't work for me?

You're covered by our 30-day money-back guarantee. Email us and we'll refund you in full — even if the tins are empty.