Eligibility Criteria:
Inclusion Criteria:
* Clinically healthy female between the ages of 18 and 50 years, inclusive,
* have a regular or predictable menstrual cycle
* Typically have regular bowel movements,
* Willing and able to consume a probiotic supplement for 4 weeks,
* Willing to discontinue consumption of probiotic supplement and probiotic-fortified products 2 weeks before the start of the study and throughout the study,
* Willing to discontinue fiber supplements 2 weeks before the start of the study, and throughout the study,
* Willing to provide 1 stool sample 4 times throughout the study,
* Willing to provide 2 vaginal swabs 4 times throughout the study,
* Willing to undergo vaginal pH swab measurements (with a swab) 5 times throughout the study,
* Willing to provide 2 perineal skin swabs (skin between the vagina and the anus) 3 times throughout the study,
* Willing to complete a pregnancy test at the screening visit.
Exclusion Criteria:
* Menopausal women,
* Vaginal pH \< 2 or \> 5 measured at screening,
•. Menstruation during the sample collection times,
* Women that are lactating, pregnant, attempting to get pregnant, or have a positive pregnancy test,
* Use of vaginal probiotics in the last 3 months,
* Use of local vaginal antibiotics or antifungals in the last 3 months.
* Use of oral antibiotics or antifungals in the last month,
* Ongoing symptoms of vaginal and/or urinary tract infections,
* Current treatment for vaginal sepsis or urosepsis,
* Currently being treated for a severe chronic disease (e.g. cancer, renal failure, chronic inflammatory digestive or gastro-intestinal disease, immunodeficiency, etc.),
* Clinical diagnosis of a gynecological disease or condition (e.g, fibroma, endometriosis, polycystic ovarian syndrome, etc.),
* Clinical diagnosis of secondary dysmenorrhea,
* Intolerance, allergy or sensitivity to milk, soy, or yeast.