Mouthwash study: what rinsing does to your microbiome

NCT ID NCT05603650

First seen Jan 07, 2026 · Last updated May 13, 2026 · Updated 25 times

Summary

This study looks at how two common mouthwashes (Listerine and Lumineux Oral Essentials) affect bacteria and three viruses in your mouth and gut. About 200 healthy adults aged 18-25 will rinse twice daily with one of the mouthwashes or water for 180 days. Researchers will collect mouth swabs and stool samples to measure changes in germs.

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This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.

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Contacts and locations

Study contacts

  • Contact

    Phone: •••-•••-•••• Email: •••••@•••••

Locations

  • Beckman Laser Institute and Medical Clinic

    RECRUITING

    Irvine, California, 92612, United States

    Contact Phone: •••-•••-•••• Email: •••••@•••••

    Contact

Conditions

Explore the condition pages connected to this study.