Probiotics are important to support a womans immune system, so Dr. Perlmutter created Garden of Life Dr. Formulated Probiotics Urinary Tract +, a unique formula with probiotics, clinically studied organic whole cranberry and vitamin D3 to support healthy urinary tract function and promote the growth of good bacteria. More specifically, Urinary Tract + contains 500mg of organic Pacran cranberry, the clinically studied amount in Gold Standard human trials. Pacran is certified organic cranberry powder specifically designed to support urinary tract health. Urinary Tract + also contains 50 billion CFU from 16 probiotics, including L. reuteri and L. acidophilus NCFM, plus whole food vitamin D (1,000IU) nutrient support for immune system health.