Acne: strains named in the research

Cutibacterium acnes (formerly Propionibacterium acnes) is a slow-growing bacterium that is a normal resident of human skin, particularly in sebaceous (oil-secreting) follicles.

Lactiplantibacillus plantarum (formerly Lactobacillus plantarum) is a well-characterized lactic acid bacterium found across fermented foods, the human gut, and diverse environmental niches.

Lactobacillus acidophilus is one of the most studied lactic acid bacteria, with research dating back decades documenting its ability to survive the harsh conditions of the gastrointestinal tract, including acid and bile …

Lacticaseibacillus casei (species-level entry, no specific strain designation) is a broad species grouping that includes well-studied commercial strains such as L.

Lactobacillus casei (species-level entry, undesignated strain) is a broadly studied lactic acid bacterium encountered across fermented dairy and non-dairy foods.

Lacticaseibacillus rhamnosus, most widely studied as the GG strain, has an extensive research record, though the evidence base in this index is predominantly in vitro and animal-model work.

Lacticaseibacillus paracasei (the species, without a designated strain identifier) is a broadly distributed lactic acid bacterium found in fermented foods and the human gut.

Bifidobacterium longum is a well-characterized commensal species found throughout the human gut, with a particularly studied role in early-life microbiome establishment.

Lactobacillus johnsonii is a facultative anaerobic lactic acid bacterium originally isolated from the human vaginal microbiota.

Bacillus circulans is a soil and environmental bacterium studied primarily for its industrial enzyme production — notably beta-galactosidase (relevant to prebiotic oligosaccharide synthesis), cyclodextrin glucanotransfer…

Bacillus coagulans is a spore-forming bacterium studied as a probiotic candidate, in part because its spores exhibit heat and acid stability, a property studied in relation to survival through food processing and gastric…

Bacillus methylotrophicus is a soil and plant-associated bacterium now recognized as a later taxonomic synonym of Bacillus velezensis.

Bacillus paramycoides is a soil- and environment-associated bacterium within the Bacillus cereus group that has been studied primarily for agricultural and environmental applications, including plant growth promotion, bi…

Bifidobacterium breve is a species commonly found in the human gut, particularly in breastfed infants, where it plays a role in fermenting complex carbohydrates including human milk oligosaccharides.

Bifidobacterium breve BR03 is a named probiotic strain studied in randomized controlled trials spanning multiple research contexts.

Enterococcus faecalis is a gram-positive bacterium that is a normal inhabitant of the human gastrointestinal tract, but it is also a well-documented opportunistic pathogen associated with nosocomial (hospital-acquired) i…

Escherichia coli Nissle 1917 (EcN) is a non-pathogenic E.

Lacticaseibacillus rhamnosus GG (LGG) is one of the most extensively studied probiotic strains globally, though the papers linked to this strain entry focus primarily on encapsulation technology and formulation stability…

Lactobacillus brevis is a heterofermentative lactic acid bacterium widely distributed in fermented food environments.

Lactobacillus crispatus is a lactic acid bacterium native to the human vaginal microbiota.

Lactobacillus helveticus is a lactic acid bacterium widely used in dairy fermentation and probiotic applications.

Ligilactobacillus salivarius (species-level entry, no specific strain designation) is an oral and intestinal lactic acid bacterium studied across several strains for immune modulation and respiratory health.

Limosilactobacillus reuteri DSM 17938 (formerly Lactobacillus reuteri DSM 17938) has been studied in multiple randomized controlled trials and at least one published meta-analysis examining infantile colic, episodes of p…