Certain Lactobacillus strains have been clinically studied for their role in supporting vaginal flora health, and this mechanism is most relevant to women asking about probiotics for BV. The vaginal microbiome is naturally dominated by Lactobacillus species that maintain an acidic, stable environment. Daily use of research-backed strains like GR-1™ and RC-14™ may be relevant when that balance is disrupted.* Always consult a healthcare provider if you are experiencing an active infection or recurring symptoms.

The most extensively studied probiotic strains for vaginal health are Lacticaseibacillus rhamnosus GR-1™ and Limosilactobacillus reuteri RC-14™. Together, they are supported by more than 25 published clinical trials and 60+ scientific publications focused on vaginal and urogenital health. These strains must appear on a product label with their strain codes, not simply listed as Lactobacillus rhamnosus. Bio-K+ Women’s Health Capsules contain both strains.*

The clinical evidence for GR-1™ and RC-14™ was primarily derived from oral delivery studies. These strains have the ability to survive digestion and reach the urogenital tract via the gut-vagina axis, making oral capsules the evidence-backed format for this specific strain pairing. Bio-K+ Women’s Health Capsules are taken orally, require no refrigeration, and are vegan and gluten-free. A healthcare provider can help determine the most appropriate approach for your individual situation.

Research on GR-1™ and RC-14™ includes studies examining their role in supporting vaginal flora health over time. Bio-K+ Women’s Health Capsules promote vaginal and urogenital health as part of a daily routine.* If you are experiencing recurring vaginal infections, speak with a healthcare provider about your options.

Three criteria distinguish a well-researched women’s probiotic. First, strain designators must appear on the label by name: GR-1™ and RC-14™. Second, look for third-party or FDA-registered facility manufacturing standards. Third, the bacterial count should be guaranteed until the expiration date, not only at the time of manufacture. Bio-K+ Women’s Health Capsules meet all three criteria, delivering 2 billion CFU.*