Tooth Armour · Toothpaste Serum
4.9 · 3,612 reviewsThe serum your smile was missing.
A toothpaste serum powered by NH-10 — a concentrated blend of 6 actives led by Nano-Hydroxyapatite, engineered to mirror the mineral your enamel is mostly made of. Add it to your toothpaste, or use it on its own.
How long a supply?
- Nano-Hydroxyapatite
- 6 active ingredients
- Enamel care
- Use alone or add-on
The skincare-ification of your smile
Your toothpaste cleans. This cares.
The science
Built around the mineral your enamel is made of.
Enamel is roughly 97% hydroxyapatite. Tooth Armour is led by Nano-Hydroxyapatite — engineered to mirror that exact mineral, at a size small enough to settle into the surface.
A mineral match, not just a clean.
Ordinary toothpaste foams, scrubs and rinses away. Tooth Armour goes a step further: Nano-Hydroxyapatite mirrors the mineral that makes up most of your enamel, helping smooth and care for the surface while you brush — the kind of upgrade your routine has been missing.
Two drops. Your routine, upgraded.
Add a few drops on top of your usual toothpaste, or use Tooth Armour on its own — whatever fits your routine. Brush for two minutes, morning and night. No extra steps, no new habits to learn, just a serum doing the quiet work in the background.
What's inside every bottle.
NH-10 is a concentrated blend of six actives, each chosen to care for your mouth and not just clean it:
- Nano-Hydroxyapatite
- Hydrated Silica
- Xylitol
- Hyaluronic Acid
- Niacinamide (Vitamin B3)
- Zinc Gluconate
Why switch
More than a tube of toothpaste.
Good to know
Questions, answered.
Does it replace my toothpaste?
It can, or it can sit alongside it. Use Tooth Armour on its own, or add a few drops on top of your regular toothpaste for an upgraded routine. Either way, you brush as normal for two minutes.
What is Nano-Hydroxyapatite?
Hydroxyapatite is the mineral that makes up the majority of your tooth enamel. Nano-Hydroxyapatite is a fine, lab-engineered version of it — small enough to settle into the surface of the tooth as you brush.
What are the 6 actives?
NH-10 combines Nano-Hydroxyapatite, Hydrated Silica, Xylitol, Hyaluronic Acid, Niacinamide (Vitamin B3) and Zinc Gluconate — a blend designed to care for your enamel and freshen your mouth.
How long does one bottle last?
A single bottle lasts roughly a month with twice-daily use. Most people pick the 2 or 3-bottle bundle so they never run out — and pay less per bottle.
What's your guarantee?
Every order is backed by a 30-day guarantee. If Tooth Armour isn't the upgrade you hoped for, we'll make it right.
Smiles that switched
I have sensitive teeth and was curious about the hydroxyapatite thing. Three weeks of adding a couple of drops to my toothpaste and my mouth honestly feels smoother and less sensitive. Bottle looks gorgeous on the shelf too.
Was skeptical about a "serum" for teeth but it's genuinely just a nicer way to brush. Use it on its own at night, no fluoride taste, and my teeth feel clean for hours. Reordered the 3-pack.
Bought it mostly for the aesthetic, stayed for how my teeth feel. It's part of my morning routine now, right next to my skincare. The dropper makes it feel premium, not like toothpaste.
My hygienist asked what I'd changed. I've been adding this on top of my normal toothpaste for two months. Easiest "upgrade" I've ever made to a routine I was never going to skip anyway.
The 2-bottle bundle is the sweet spot — one for the bathroom, one for my travel bag. Love that it's not foamy and gross. Feels like I'm finally doing something for my teeth, not just against them.
Really like it and my teeth feel great. Only reason it's not five stars is I wish the bottle were a touch bigger — I go through it fast because I love it. Already on my second.