05 Jul 2024 --- A study published in the Journal of Medical Microbiology finds that while Listerine Cool Mint effectively targets dental plaque and gingivitis, its impact on the broader oropharyngeal microbiome should be carefully evaluated. Personal Care Insights talks to Chris Kenyon, study author and head of the STI unit at the Institute of Tropical Medicine in Antwerp, Belgium, and the parent company of Listerine Cool Mint, Kenvue, who disagrees with the research.