Why We Started Reading Toothpaste Labels

Colin and Allison started Better Human Goods because they couldn't stop flipping over labels in their own kitchen.

The habit spread to the bathroom pretty fast.

Toothpaste is one of the most intimate products you use, it goes in your mouth, sits on your gum tissue, and gets used twice a day for a lifetime.

Kids use it starting around age two.

So when we noticed that the 'natural' section at every major retailer had quietly filled up with brands making claims that didn't hold up to scrutiny, we decided to test it properly.

We pulled 12 toothpastes from that natural shelf brands with green packaging, plant-based marketing, and ingredient lists that looked clean at a glance.

Then we read every single word.

The Ingredients That Keep Showing Up

Carrageenan was in six of the twelve products.

It's derived from red seaweed, which sounds fine, until you look at what degraded carrageenan does in the gut and note that food-grade and degraded forms are hard to keep cleanly separated in manufacturing.

Sodium lauryl sulfate (SLS) appeared in eight of the twelve, including three that led with 'gentle' or 'sensitive' language.

SLS is a surfactant it creates the foam but it's also a known irritant associated with increased incidence of canker sores with repeated exposure.

Glycerin showed up in eleven of twelve, which isn't inherently alarming, but many of those products used synthetic glycerin derived from petrochemical processing not the plant-based kind the label implies.

Artificial sweeteners specifically saccharin and sucralose were hiding in four products, always buried in the last five ingredients.

And 'natural flavors' appeared in ten of the twelve, which is a catch-all term that can legally include a wide range of synthetic compounds and processing aids.

Not one of these twelve products disclosed what their 'natural flavors' actually contained.

The Fluoride Debate Is a Distraction

Most of the conversation about toothpaste safety gets funneled into fluoride whether it's in or out.

That debate has its place, but it's pulling attention away from the rest of the label.

A toothpaste can be fluoride-free and still contain SLS, carrageenan, synthetic preservatives, and undisclosed flavoring compounds.

We saw that exact combination in four of the products we tested.

The brands marketing these as 'clean' alternatives weren't lying about the fluoride.

They just weren't telling you the full story about everything else.

What Hydroxyapatite Actually Does and Why It Matters

Hydroxyapatite is the mineral that your teeth are made of roughly 97% of enamel is hydroxyapatite by composition.

Non-nano hydroxyapatite (n-HAp) is a biocompatible remineralizing agent that has been used in Japanese dentistry since the 1970s.

Multiple clinical studies have shown it to be as effective as fluoride at remineralizing early enamel lesions and reducing sensitivity.

The 'non-nano' distinction matters: nano-particle versions are small enough to potentially cross cellular membranes, which is why we only work with non-nano hydroxyapatite in the Dentō system.

Not one of the twelve 'natural' toothpastes we tested contained hydroxyapatite.

Several of them used calcium carbonate as their remineralizing agent  a significantly less bioavailable compound that functions more as a mild abrasive than a true remineralizer.

The gap between what 'natural toothpaste' markets and what it delivers is wider than most people realize.

The Packaging Problem Nobody Talks About

Ten of the twelve brands came in standard plastic squeeze tubes.

Most toothpaste tubes are made from a multi-layer laminate of plastic and aluminum and most are not recyclable in standard programs.

More importantly, the inside of many conventional plastic toothpaste tubes is lined with a layer that can leach plasticizers into the product over time, especially as the tube is compressed repeatedly.

A few of the brands we tested had paper or aluminum packaging on the outside, but plastic laminates on the inside.

The Dentō system was built around this problem from day one, no plastic in the packaging that touches the product.

It's a harder manufacturing problem to solve, which is why most brands haven't.

How to Actually Read a Toothpaste Label

Ingredients are listed in descending order by weight the first five matter most.

If you see SLS (sodium lauryl sulfate) in the top five, the product is built around foam, not function.

If you see 'natural flavors' without any disclosure, that's a transparency gap worth noting.

Look for carrageenan and skip the product if you find it, the risk isn't worth it for something used twice a day.

A good toothpaste should have a short, pronounceable ingredient list with functional ingredients you can trace.

Hydroxyapatite, xylitol, coconut oil, and baking soda are all ingredients with solid research behind them and nothing to hide.

If you can't find a full ingredient list on the brand's website not just the packaging that's a red flag.

Full transparency isn't a marketing tactic; it's the baseline.