Improve urinary tract health with Garden of Life Dr. Formulated Probiotics. Probiotics are an important way to support the immune system and keep it firing on all cylinders. Garden of Life’s unique formula, created by Dr. David Perlmutter, contains 500 milligrams of organic whole cranberry, 16 strains of probiotics with 50 billion live active cultures, and vitamin D3, all of which are essential to urinary tract function. Garden of Life Dr. Formulated Probiotics are vegetarian, soy-free, dairy-free, and gluten-free. Each bottle has 60 capsules and is shipped with the Arrive Alive Potency Promise.