Can My Toothpaste Affect My Gut or Hormone Health?

Your Questions Answered

It might surprise you to learn that the toothpaste you use every day could be doing more than just cleaning your teeth. Some common ingredients found in conventional toothpaste formulations have raised concerns about their impact on gut health, hormone balance, and even the oral microbiome, which is the community of good bacteria in your mouth that supports digestion and immunity.

Let’s explore the science, and how choosing a cleaner formula like NUEOS can help you care for your whole body - not just your smile.

Ingredients to look out for:

Some of the most commonly used ingredients in mainstream toothpaste include:

Sodium Lauryl Sulfate (SLS): A foaming agent that can irritate the mouth and disrupt the oral microbiome
Triclosan: Once added for its antibacterial properties, this ingredient has been banned in the EU and restricted in the U.S. due to concerns around its endocrine-disrupting potential
Artificial sweeteners (e.g. saccharin, aspartame): Used to improve taste but linked to gut microbiome disruption in some studies
Microplastics and synthetic dyes: Sometimes found in whitening or “fun” toothpastes - they serve no real health purpose and may be swallowed in trace amounts

While these ingredients are generally permitted in small quantities, more consumers are choosing to minimise daily exposure, especially for products that come into close contact with mucous membranes like the gums and tongue.

What about swallowing trace amounts?

While toothpaste isn’t meant to be swallowed, trace amounts almost always are. Over time, regular exposure to potentially irritating or hormone-altering ingredients (even in microdoses) is worth reconsidering.

Many experts now recommend looking for oral care products that prioritise ingredient transparency, natural alternatives, and microbiome support.

NUEOS: Clean, considered, conscious

NUEOS products are formulated with your whole-body wellness in mind. That means:

No SLS, triclosan, parabens or synthetic dyes
No artificial sweeteners or unnecessary foaming agents
Only naturally effective ingredients designed to support enamel, balance the mouth’s pH, and respect your microbiome

Our mission is simple: oral care that’s effective, gentle, and conscious - with no compromises.