Streptococcus mutans

Streptococcus salivarius (undesignated strain) is a species native to the human oral cavity and upper respiratory tract, where it is one of the first bacteria to colonize at birth.

Streptococcus mitis is a gram-positive commensal bacterium that forms part of the normal oral and upper respiratory microbiota in humans.

Streptococcus salivarius M18 is an oral probiotic strain with a growing body of randomized controlled trial evidence focused on dental and periodontal health.

Streptococcus pyogenes (Group A Streptococcus) is a human pathogen responsible for conditions such as strep throat, scarlet fever, and more serious invasive infections, and is not a probiotic organism.

Weissella cibaria CMS1 is an oral probiotic strain with early-stage evidence across a small number of studies.

Streptococcus salivarius ST3 is a Gram-positive coccus naturally found in the oral microbiota.