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The best probiotic for your vaginal health depends on what you're trying to improve: preventing bacterial vaginosis (BV), reducing recurrent yeast infections, or maintaining a healthy vaginal microbiome. Not all probiotics have the same benefits, and the specific bacterial strains matter more than the number of billions of bacteria listed on the bottle.
Which probiotics are best for vaginal health?
Research suggests that certain Lactobacillus strains are especially relevant to vaginal health. However, no over-the-counter probiotic has been established as the best option for everyone, and probiotics are not a substitute for treating an active infection.
1. Lactobacillus crispatus
(Promising for BV)
This species is strongly associated with a healthy, Lactobacillus-dominant vaginal microbiome. A specific vaginal formulation, L. crispatus CTV-05 (Lactin-V), reduced BV recurrence in clinical trials after antibiotic treatment, but it is not the same as an ordinary store-bought probiotic.
Sources cited in this answer10
- cdc.govBacterial Vaginosis - STI Treatment Guidelines
- academic.oup.comDiagnosis and Management of Bacterial Vaginosis: Summary of Evidence Reviewed for the 2021 Centers for Disease Control and Prevention Sexually Transmitted Infections Treatment Guidelines | Clinical Infectious Diseases
- cdc.govSexually Transmitted Infections Treatment Guidelines, 2021 | MMWR
- pubmed.ncbi.nlm.nih.govThe role of lactobacillus probiotics in the treatment or prevention of urogenital infections--a systematic review - PubMed
- journals.asm.orgThe role of probiotics in restoring and maintaining vaginal microbiome health: a review
- pubmed.ncbi.nlm.nih.govProbiotics for prevention of recurrent vulvovaginal candidiasis: a review - PubMed