None of them put anything back.
Whitening lifts the stain. Sensitivity paste numbs the nerve. A rinse freshens the breath. Enamel is the one tissue in your body that cannot rebuild itself. Whatever you clean off it, it does not replace.
01Whitening lifts the stain.
Peroxide lightens the color of the tooth. It adds nothing to the surface.
02Sensitivity paste numbs the nerve.
Stop using it and the cold is back, because nothing about the tooth changed.
03A rinse freshens the breath.
Pleasant for an hour. It never touches the enamel itself.
04Nothing puts mineral back.
Each one works on the stain, the nerve or the breath. None of them work on the enamel itself.What that gap feels like.
In the order most people notice it.Enamel cannot rebuild itself. Bleaching, numbing and rinsing all leave it exactly as thin as it was. Putting mineral back is a different job.
Calm · Seal · Shield.
Most sensitivity toothpaste gives you comfort and leaves it there. Stop using it and you are back where you started, because nothing about the tooth changed. This works on two timelines at once.
Calm.
Potassium citrate settles sensitivity early, so you feel something in the first weeks.
Seal.
Hydroxyapatite closes the microscopic channels cold and sweet travel through.
Shield.
A mineral layer that takes the acid hit before your enamel does.
One is fast. Two and three work on the tooth itself.
The science →Like any toothpaste. With one change.
Not rinsing is the only thing you do differently. It leaves the mineral on the tooth instead of down the sink.
- 01A pea-sized amountNo more. A full strip is marketing, not dosage.
- 02Brush for two minutesOrdinary brushing, ordinary brush. Nothing about the technique changes.
- 03Spit, do not rinseThe only thing you do differently. Rinsing sends the mineral down the sink.
- 04That is the whole routineTwice a day. One tube lasts about eight weeks.
Why not rinse? Because rinsing sends the mineral down the sink.
twice a day.
It was never just about your teeth.
The iced drink you let warm up first. The side you stopped chewing on. The ice cream you stopped ordering. This is what changes when the surface finally gets mineral back.
- 01Ordering the cold thing againIce cream, iced coffee, a glass straight from the fridge. Without waiting for it to warm up first.
- 02Brushing without bracing for itTwo minutes that used to be something you prepared for. Now they are just two minutes.
- 03Both sides of your mouth againNo more chewing on the side that does not hurt, or sipping through the corner of your mouth.
- 04Keeping the enamel you still haveEnamel does not grow back. Looking after it now is how you keep your own teeth, not a crown quote.
Seventeen ingredients. All seventeen listed.
The new formula keeps only clean ingredients: no alcohol, no SLS, no artificial sweeteners. Six of them are doing the work, and every one of them is something you can look up.
RebuildsNano, not microHydroxyapatite 10%
The same mineral your enamel is made of, at ten percent, up from 7.5% in the original formula, and printed on the box. Nano-sized, which is what lets it settle into the microscopic channels rather than sitting on top of them.
CalmsWorks earlyPotassium citrate
Settles the nerve response that makes cold and sweet register as pain. It is the fast part of the formula, and the reason you feel something in the first weeks.
Holds plaque backNo stingZinc citrate
Slows plaque forming along the gum line between brushes. Quiet, unglamorous, and one of the few things in oral care with decades behind it.
Cleans gentlyLow abrasionHydrated silica
The cleaning agent. Gentle enough for daily use on exposed dentine, which is more than can be said for most whitening pastes.
Starves bacteriaFaintly sweetXylitol
A sugar alcohol. Bacteria take it in expecting food, cannot metabolize it, and stall. It is also what makes the paste mildly sweet without sugar.
MildNo burnSpearmint & menthol
Mild spearmint rather than the strong peppermint most pastes use. Strong mint reads as clean, but on sensitive teeth it mostly reads as sting.
Highlighted are the six doing the work. The rest are the base, the preservative system and pH adjusters, all named on the tube. Not in it: alcohol, SLS, fluoride, peroxide, artificial sweeteners, fragrance.
Honestly told, in three stages.
“Comfort comes first. The tooth takes longer.”
- 1Weeks one to twoThe cold stops landing.Potassium citrate is the fast part. Cold and sweet stop registering as pain.
- 2Weeks four to eightThe channels close.Slower and quieter. This is hydroxyapatite settling into the tubules, not a sensation.
- 3Month three onwardIt holds without thinking.The comfort stays even on the days you rush it. That is the shield doing its job.
If a month passes and the cold still lands the same way, use the guarantee. We would rather refund you than have you keep buying something that is not working.
Not whiter. Just calmer.
Every review is from a verified purchase. We do not edit them, and we do not only publish the flattering ones.
32,732+ verified
VerifiedBought it half expecting nothing, after every sensitivity paste I have tried. Cold water stopped landing the same way inside a month. I am not rinsing any more either, which felt wrong for about three days.
Deborah H. · 5 weeks in
VerifiedI had stopped ordering it. Four months in I had a whole bowl and felt nothing, and that is the first time in about six years.
Maureen E. · 4 months in
VerifiedEvery other paste I tried felt like it was stripping something. This one is mild spearmint and that is it. My mouth does not sting afterwards.
Kathleen P. · 7 weeks in
VerifiedShe wanted to know what I had changed. I told her hydroxyapatite and she said keep going, which I did not expect.
Sharon W. · 3 months in
VerifiedI was sceptical about spitting and leaving it. Two months in the difference is obvious enough that I have stopped questioning it.
Angela R. · 2 months in
VerifiedBrushing used to be something I braced for. It is not any more, and I only really noticed when I stopped noticing.
Patricia L. · 6 months in
VerifiedIt asks nothing extra of me except not rinsing. That is the only reason I have kept it up.
Julie M. · 4 months in
VerifiedSweet stopped hurting before cold did. Both went eventually, but sweet went fast.
Christine B. · 3 months inThe most useful review on this page is the one that says it took three months. We publish those too.
Read all 32,732 →
Formulated with people who see the damage every day.
“Most sensitivity starts where the gum has pulled back. You cannot put the gum back. You can cover what it left exposed.”
Most brands want a name on the box. This one wanted the claims cut back until every single one could be defended in front of a colleague. It will not fill a cavity and it will not regrow a gum. It puts mineral back into a surface that is thinning, and that is what it says.
- Board-certified periodontist, DMD, MS
- Reviewed the full formula before it went to manufacture
- Holds the veto on every enamel claim we publish
Compensated partner. She reviews the science, not the marketing.
Sixty days. Four steps.
Most guarantees are written to be difficult. This one is not. No ticket number, no queue, no box to repack.
no questions
Give it a month. Or send it back.
If the cold still lands the same way, ask for a refund any time within sixty days. All we ask is that you give it a fair month.
Fair questions. Straight answers.
Including the ones with an awkward answer.
Anything not covered here, email us. A person reads them.
Contact support →My teeth are fine?
Enamel thins quietly and does not come back. Nothing here requires a problem to be useful.
When will I notice?
Cold and sweet usually stop landing the same way inside the first two to three weeks. The sealing work runs over months, and you will not feel that part happening.
Why no fluoride?
Fluoride hardens what is already there. Hydroxyapatite puts mineral back. If your dentist wants you on fluoride for a specific reason, follow that. This is not a fight worth having with someone who has seen your x-rays.
Will it whiten?
A sealed surface reflects light more evenly, so teeth look a little brighter over time. There is no peroxide in this and it will not lift a deep stain.
Why not rinse?
It is the only thing you do differently, and it is the whole reason the paste works. Spit, and leave it.
Can I use it with my usual brush?
Ordinary brush, ordinary two minutes, twice a day. A pea-sized amount is enough — a full strip is marketing, not dosage.
Is it safe for kids?
There is nothing in the formula contraindicated for children, but dosage and swallowing are questions for someone who has looked in their mouth.
Will it repair a cavity?
A cavity is a hole and no toothpaste fills one. What this does is put mineral back into a surface that is thinning, which is a different thing and a smaller promise.
What changed in the new formula?
Hydroxyapatite went from 7.5% to 10%. Alcohol, SLS and artificial sweeteners are gone, and only clean ingredients are left. The result works 64% better than the original formula.
How do subscriptions work?
Pick one, two or three tubes at checkout. Your refill ships every 28 days, and the bigger the box, the less each tube costs. Cancel any time.
Anything not covered here, email us. A person reads them.
Contact support →