Which probiotic may help restore vaginal flora after an episode of Bacterial Vaginosis?

Lactobacillus is recognized for its role in maintaining and restoring the balance of vaginal flora, particularly after disturbances such as bacterial vaginosis (BV). This group of bacteria produces lactic acid, which helps to maintain a low pH in the vagina. A healthy vaginal environment is typically characterized by a predominance of Lactobacillus, which inhibits the growth of pathogenic bacteria, including those associated with BV.

In clinical studies, supplementation with Lactobacillus has shown promise in helping to restore a normal vaginal microbiota following episodes of BV. This effect is largely due to the ability of Lactobacillus species to outcompete harmful bacteria, support mucosal immunity, and reinforce the natural defenses of the vaginal ecosystem.

The other probiotics mentioned in the choices do not have the same level of evidence supporting their effectiveness specifically for restoring vaginal flora after BV. While some may have health benefits in other contexts, Lactobacillus is the primary species associated with effective vaginal health recovery post-infection.