Better Breath Guide
Oral Probiotics Explained
Learn what oral probiotics are, how they differ from ordinary probiotics and what researchers are studying about their possible role in oral health.
Oral Probiotics for Bad Breath: Do They Really Work?
Research-focused guide to oral probiotics and halitosis.
Read the Guide →Best Oral Probiotics for Bad Breath
Compare strains, ingredients, formats and value.
View Comparison →K12 vs. M18
Coming soon.
How Long Do Oral Probiotics Take to Work?
Coming soon.
K12 and M18
These are related but distinct strains of Streptococcus salivarius. When evaluating a product, check which strain is actually listed.