Everything you like about toothpaste — without the tube

Clean,
not coated.

A solid oral-care bar with iodine.

Most toothpaste leaves a film behind — that faintly coated feeling that lingers after you rinse. This bar doesn't. It cleans your whole mouth and rinses away to a genuinely clean feel. You notice it the first time, and tend to prefer it ever after.

Order a bar

$8Per bar · 2-bar min · free shipping

Formulated
with
IODINE

Iodine Tooth Bar front label: Clean Teeth, Fresh Breath, No Tube — Made in the USA with Global Ingredients

Seven reasons it's different

Why a bar, not a tube

The bar format already won in shampoo and soap — simpler, longer-lasting, better for travel. Oral care is the next, obvious step. Here's what that gets you.

500+ brushings

A dense bar gives up only a thin swipe per use, so one bar outlasts several tubes of paste.

No tube to throw away

A toothpaste tube is mixed plastic and metal that recycling streams reject. A bar removes it entirely — no tube, no mixed-material waste.

Clean, healthful & effective

A gentle syndet cleansing bar with antimicrobial iodine — pleasant on teeth, gums, and lips, with the dose capped by design.

Travels with no restrictions

A solid bar — no liquid limits, no leaks, no cap left open in your bag. Just drop it in and go.

Tastes great

Sweetened with thaumatin, a natural protein sweetener — clean sweetness, no sugary masking, no synthetic sweetener.

Rinses clean, no tacky aftertaste

Rinses away to a fresh, genuinely clean mouthfeel — none of the lingering film most toothpaste leaves behind.

Fluoride-free & naturally sweetened

For those who prefer to avoid fluoride in their dentifrice and want a clean, pleasant, low-waste alternative — sweetened only with a natural protein, never a synthetic. This bar is not a fluoride caries treatment, and we don't claim it to be.

For dentists & physicians — and curious patients

The dose, measured

Unlike a tube of toothpaste — which never explains the biochemistry of its fluoride — we show exactly what our iodine does and how little of it you actually absorb. This figure didn't come from a marketing estimate. It came off a scale.

Each brushing places about 59 µg of iodine on the brush — less than half a day's dietary requirement — of which only a fraction is absorbed (roughly 12 µg, about 24 µg/day with twice-daily use). That is well under the 150 µg daily requirement, and a tiny fraction of the 1,100 µg upper limit. The hard bar caps the dose by design: you scrape, you don't squeeze, so you can't over-apply.

What we measured	Amount	What it means
20 firm brush-scrapes	= 1.0 g of bar	So one scrape ≈ 50 mg
Normal use = two passes	≈ 0.1 g of bar	The real per-brushing amount
Iodine on the brush (0.1 g × 0.59 mg/g)	≈ 59 µg	Less than half a day's dietary need
Absorbed per use (~20% uptake)	≈ 12 µg	A trace amount
Absorbed per day (twice daily)	≈ 24 µg	Well under the 150 µg daily RDA

A note on “0.59 mg/g”: PVP-I 10% carries about 1% available iodine — the common error is reading ‘10%’ as 10% iodine, when it is 10% of 10% — or about 10 mg per mL of solution. The bar is loaded at 75 mL of 10% PVP-I per 1,200 g base.

We volunteer this

Anyone with a thyroid condition — check with your doctor first

If you have Hashimoto's, Graves', thyroid nodules, a history of thyroid dysfunction, or take thyroid medication, talk with your physician before regular use. Iodine from any source can affect a susceptible thyroid; the dose here is small, but it is daily, and daily is easily overlooked.

Most oral-care products containing iodine never mention this. We lead with it because the people behind this bar work in iodine–thyroid science, and an honest disclosure is how trust is earned. A clinician who sees us flag the thyroid question unprompted can trust the rest of what we say.

Common questions

Answered plainly

Is the iodine dose safe?+

For a healthy adult with normal thyroid function, yes — comfortably. About 59 µg is placed on the brush per use, of which only a fraction is absorbed (~12 µg per use, ~24 µg/day twice daily) — below the 150 µg daily requirement and far below the 1,100 µg upper limit. The hard bar also caps the dose mechanically: you can't over-apply to the brush. The exception is thyroid patients — see the note above.

Does it stain teeth?+

At 0.5% PVP-I in a cream-colored bar, with normal use, spitting, and rinsing, staining is not expected — the concentration is low and the contact time brief. Early use rinses clean and easily.

Does it replace fluoride toothpaste?+

No — and we don't claim it does. Fluoride prevents cavities, and this bar is not a caries treatment. It is a cleansing bar with antimicrobial iodine that contains no fluoride — for those who prefer to avoid it in their dentifrice (many already get it in drinking water) and want a clean, pleasant, low-waste alternative.

What is thaumatin?+

A naturally intensely-sweet protein used worldwide in tiny amounts as a sweetener. It has no thyroid interaction, no cavity-causing sugar, and no synthetic sweetener — a fraction of a percent of the bar.

How do I use it?+

Wet your toothbrush. Scrape gently across the bar for one or two passes. Brush as usual. Spit and rinse several times. Keep the bar dry between uses.

How long does one bar last?+

A normal two-pass application takes only about 0.1 g of bar, so a single 70 g bar delivers over 500 brushings — outlasting several tubes of paste.

The oval, cream-colored Iodine Tooth Bar embossed IODINE TOOTH BAR, resting in its reusable travel case

The actual bar

An oval, cream-colored bar embossed simply IODINE TOOTH BAR, in a reusable travel case. No glamour staging — this is the real thing, the same bar that arrives at your door. We'd rather show you exactly what you're getting.

70 gNet wt. · 2.5 oz

0.5%PVP-I

500+Brushings

0Fluoride

Nothing hidden

Full ingredients

The same transparency we bring to the dose, we bring to the formula. Here is the complete list.

INGREDIENTS: Water, Glycerin, Sodium Stearate, Sorbitol, Sodium Laurate, Propylene Glycol, Sodium Laureth Sulfate, Goat Milk, Sodium Chloride, Sodium Lauryl Sulfate, Citric Acid, Titanium Dioxide, Sodium Citrate, Tetrasodium Iminodisuccinate, Tetrasodium Etidronate, Povidone-Iodine (0.5%), Thaumatin.

Order direct

Two bars. A thousand brushings.

Fluoride-free, naturally sweetened, and built to outlast the tube. $8 per bar, two-bar minimum — and shipping is on us.

$8.00 per bar

Two-bar minimum · free US shipping

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Clean,not coated.

The bar is an unfamiliar idea right up until the first brushing — and then it isn't.