What are the benefits of using xanthan gum in oral care products?

Next time you squeeze toothpaste onto your brush or swish mouthwash around, take a second to notice: the smoothness that doesn’t feel gritty, the way it stays on your teeth instead of sliding off, the consistent texture that’s the same every time you use it. Chances are, xanthan gum is behind all of that. This natural ingredient isn’t just for food— it’s a secret weapon in oral care, and once you learn its benefits, you’ll see why it’s in so many of your go-to products. Let’s dive in.

First, a quick refresher: What is xanthan gum?

If you read our last post, you already know the basics— but let’s recap for anyone new. Xanthan gum is a natural polysaccharide (a sugar-based molecule) made by fermenting simple sugars with a bacterium called Xanthomonas campestris. The result is a fine white powder that, when mixed with liquids, turns into a powerhouse thickener and stabilizer. It’s gentle, plant-derived, and has been trusted in food, cosmetics, and now oral care for decades.

6 reasons xanthan gum makes oral care products better (for you and brands)

It’s not just “filler”— xanthan gum works hard to improve how your toothpaste and mouthwash perform. Here’s how:

1. It gives toothpaste that perfect “squeeze-and-stay” texture

Ever used a toothpaste that’s either too runny (drips off the brush) or too stiff (yanks your wrist when you squeeze)? Xanthan gum fixes that. It creates a smooth, creamy consistency that glides out of the tube easily but stays put on your brush— no mess, no wasted product. And when you start brushing, it doesn’t turn into a watery slop; it keeps that pleasant, spreadable texture the whole time.

2. It stops ingredients from separating (so every use is the same)

Think about what’s in toothpaste: abrasives to clean teeth, fluoride to protect them, flavorings to make it taste good. Without a stabilizer, these ingredients can separate over time— leaving you with a watery layer on top or clumps at the bottom. Xanthan gum keeps everything mixed evenly, so the first squeeze of toothpaste from a new tube is just as effective (and tasty) as the last.

3. It makes mouthwash work harder (by sticking around longer)

Mouthwash that’s too thin slides right off your teeth and gums— you swish it for 30 seconds, and it’s gone before it can do much. Xanthan gum boosts viscosity (thickness) just enough to help the mouthwash cling to your teeth and gums. That means longer contact time for active ingredients like antiseptics, so they can better fight bacteria and freshen breath.

4. It feels nice in your mouth (no weird grit or sliminess)

Oral care is personal— if a product feels gross, you won’t use it regularly. Xanthan gum adds a smooth, silky mouthfeel to toothpaste and mouthwash. No grit, no sticky residue, just a clean, comfortable sensation. That small upgrade can make brushing or swishing feel less like a chore and more like a little self-care moment.

5. It controls fluoride (and other actives) so they last longer

Fluoride is great for strengthening enamel— but only if it’s released slowly, not all at once. Xanthan gum acts like a “release controller”: it holds onto active ingredients (like fluoride, whitening agents, or sensitive-teeth soothers) and lets them seep out gradually as you use the product. That means longer-lasting protection, not a quick burst that fades fast.

6. It’s natural and safe (no harsh chemicals needed)

For brands and consumers alike, “natural” matters— especially for products you put in your mouth. Xanthan gum is non-toxic, non-irritating, and safe even for kids (when used in recommended amounts). Unlike some synthetic thickeners, it doesn’t cause irritation or leave a weird aftertaste. It’s just a simple, effective ingredient doing its job.

We’ve got the xanthan gum your oral care products need

At Unionchem, we don’t just supply xanthan gum— we supply high-quality xanthan gum, tailored for oral care. Whether you’re formulating a sensitive-teeth toothpaste, a fluoride-free mouthwash, or a kid-friendly gel, our team can help you get the texture, stability, and performance right. We know the ins and outs of what makes oral care products successful, and we’re here to help you create something your customers will love.

Curious how our xanthan gum can elevate your oral care line? Or want to talk about customizing it for your specific formula? Reach out today— we’re happy to answer your questions and help you craft products that stand out (for all the right reasons).