The Hidden Environmental Cost of Traditional Floss

Industry comment

We all know flossing is good for our teeth. But what about the planet?

While oral health is essential, the tools we use to maintain it, particularly traditional floss can come with a surprising environmental cost. Most people don’t think twice about the floss they toss in the bin each day. But like so many everyday items, it’s the accumulation that matters.

Here’s what’s really behind that little string, and why rethinking the floss you use could be a small change with big environmental impact.

What Is Floss Actually Made Of?

Floss comes in a few different forms, and most fall into three broad categories:

Traditional string floss - the thin thread on a spool or in a dispensing container.
Floss picks - one-time-use plastic tools with a short strand of floss stretched between two prongs.
Interdental brushes - small, pipe-cleaner-style brushes for cleaning between teeth.

While they look different, nearly all conventional flosses share one thing in common: they’re made from plastic.

Most traditional floss is made from nylon (a synthetic polymer), or PTFE - better known by the brand name Teflon. These materials are chosen for their strength and glide, but they’re also non-recyclable, non-compostable, and not biodegradable.

The Problem with Plastic Floss

On the surface, floss doesn’t seem like a big polluter. It’s small, it’s thin, it disappears into the bin. But just like cotton buds, microbeads, or wet wipes the environmental problem is scale, not size.

Here’s why it matters:

Most floss ends up in landfill - where it takes decades (or longer) to break down.
PTFE is a type of ‘forever chemical’ - it resists degradation and can accumulate in ecosystems.
Billions of floss picks are thrown away each year - made from hard plastic handles and nylon string, they add to the growing single-use plastic crisis.
Some floss is flushed, leading to tangles in marine systems and wildlife risks.
Chemical coatings - like artificial flavourings and glide agents can break down into microplastics, entering waterways and food chains.

The result? A product designed to improve personal health, but contributing silently to environmental harm.

Why Sustainable Floss Matters

The answer isn’t to stop flossing - it’s to floss smarter.

Switching to floss made with natural fibres, compostable materials, or recyclable packaging makes a measurable difference. These kinds of swaps reduce reliance on petroleum-based plastics, keep harmful waste out of landfill, and help shift demand towards more ethical materials.

And just as we’ve moved from plastic straws to metal ones, or liquid soap to bars, it’s time floss caught up.

Small Habit, Big Impact

Flossing is a daily act. If one person swaps plastic floss for a sustainable option, that’s 365 plastic-free moments per year. Multiply that by thousands of people and suddenly, you’ve shifted tonnes of waste.

That’s exactly how change happens.

At NUEOS, we’re designing an oral care system that’s not just effective, but thoughtful. From reusable tins and dry toothpaste tabs to mouthwash you can chew; we believe your routine should care for your health and your environment.

And yes a better, sustainable flossing option is in development too.

Because we believe oral care should be simple, satisfying, and future-proof.

Final Thought

We’ve been told flossing is good for our teeth and it is. But if we care about long-term wellbeing, we also need to care about the materials, habits, and waste built into the tools we use.

Plastic, single-use floss is part of the problem. But switching to sustainable materials? That’s part of the solution.

The planet - like your mouth - deserves better. See our floss products.