Lactobacillus crispatus is one of the most extensively studied beneficial bacteria naturally found in the vaginal microbiome, where it plays a central role in maintaining a healthy microbial environment. Research suggests that L. crispatus helps produce lactic acid and hydrogen peroxide, contributing to a lower vaginal pH that may discourage the growth of harmful organisms. Studies indicate that vaginal communities dominated by L. crispatus are associated with a reduced risk of bacterial vaginosis, urinary tract infections, and other urogenital concerns. Commonly available in vaginal probiotic capsules and suppositories, this species has drawn significant scientific interest for its antimicrobial properties and its potential to support the body's natural defenses, though ongoing research continues to clarify the full scope of its benefits in different populations.
Compare this supplementResearch suggests that Lactobacillus crispatus plays a central role in vaginal health, with a substantial body of evi...
View studies →Research suggests that Lactobacillus crispatus possesses meaningful antimicrobial properties, particularly in the con...
View studies →Research suggests that Lactobacillus crispatus is consistently associated with a healthy female urinary tract environ...
View studies →These are commonly referenced dosage ranges for this supplement. They are not medical recommendations. Always consult a healthcare provider before supplementing.
| Form | Dose range | Frequency | Studied for | Source |
|---|---|---|---|---|
| Capsule | 99,999,999.99 CFU | Daily | Urinary tract health and recurrent UTI prevention | Based on RCTs examining uropathogen inhibition and UTI recurrence reduction |
| Capsule | 99,999,999.99 CFU | Daily | Vaginal health and bacterial vaginosis prevention/treatment | Common in clinical trials studying vaginal microbiome restoration |
| Vaginal suppository | 99,999,999.99 CFU | Twice weekly | Bacterial vaginosis recurrence prevention following antibiotic treatment | Referenced in maintenance-phase RCTs post-metronidazole therapy |
| Vaginal suppository | 99,999,999.99 CFU | Daily | Vaginal colonization and antimicrobial defense against pathogens | Used in clinical trials for intravaginal probiotic delivery and microbiome modulation |