Bad breath: common causes and effective natural solutions

Bad breath: common causes and effective natural solutions

Published on April 14, 2026

1. Bad breath: a bacterial imbalance

In nearly 80% of cases, bad breath is caused by bacteria present in the mouth, particularly on the tongue.

Some of these bacteria produce volatile sulfur compounds, which are responsible for unpleasant odors.

In a balanced mouth, these bacteria are naturally regulated by other microorganisms and by saliva. But when this balance is disrupted, they can proliferate excessively.

Bad breath is therefore, in most cases, a sign of an imbalance in the oral microbiota.

2. Factors that contribute to this imbalance

Several factors can disrupt the bacterial balance of the mouth.

Dry mouth is one of the main contributing factors, as it reduces the protective action of saliva. Insufficient hygiene, certain dietary habits, or even gum inflammation can also contribute to this imbalance.

When the microbiota is disrupted, odor-causing bacteria take over, resulting in less fresh breath.

3. Regain fresh breath in a lasting way

To act effectively, it is essential to treat the cause and not mask the symptom.

Temporary solutions, such as chewing gum or certain aggressive mouthwashes, may give an immediate feeling of freshness, but do not rebalance the microbiota.

A sustainable approach is based on complete hygiene, including tongue cleaning, good hydration and care that respects the oral ecosystem.

It is within this framework that it was developed The Smilist Pure Breath range These products are formulated to target the bacteria responsible for bad breath, while respecting the beneficial bacteria in the mouth. By acting directly on the balance of the oral microbiota, they help restore natural, stable, and lasting freshness without damaging the tissues.

In summary: bad breath and oral microbiota

Bad breath is most often linked to an imbalance in the oral microbiota. When certain bacteria grow in excess, they produce compounds responsible for unpleasant odors.

Dry mouth, poor hygiene, or certain external factors can contribute to this imbalance. To regain fresh breath in the long term, it is essential to restore the balance of the mouth rather than masking the symptoms.

The Smilist treatments are part of this approach by respecting the microbiota and acting in a targeted way on the causes of the problem.

At The Smilist, we believe that fresh breath is first and foremost a reflection of a healthy and balanced microbiota.

Christiane
Dentist & Co-founder of The Smilist