Fem-Dophilus® contains two patented and clinically documented probiotic strains, Lacticaseibacillus rhamnosus GR-1®‡ and Limosilactobacillus reuteri RC-14®‡, discovered and developed by Dr. Gregor Reid and Dr. Andrew Bruce at Urex Biotech. Over 25 years of research supports the oral use of GR-1® and RC-14® to colonize and promote healthy vaginal and urinary tract health.* A special manufacturing process protects the probiotic strains in Fem-Dophilus® from stomach acid and enhances probiotic bacterial survival to the lower intestine.*