B. lactis Bl-04® is a human isolate long considered safe and suitable for human consumption. Known for its excellent stability, Bl-04® has been present in a variety of foods and supplements for decades. It has also been shown to survive passage through the human intestine.1,2 Bl-04® studies suggest it mechanistically modulates the immune system, and clinical data supports the use of this strain for Respiratory Health.3,4 With more than 20 clinical trials, Bl-04® has also been studied in combination with other strains, including NCFM®, Bi-07™, and Lpc-37™ as part of the HOWARU® Restore blend for Digestive Health.5