In-depth research with respect to probiotics’ impact on skin health — coupled with the screening of various strains — led to the selection of a specific strain, Bifidobacterium animalis subsp. lactis Bl-04®. An in vitro study with human dermal fibroblasts, a human clinical study, and a consumer perception study, each speak to the supportive benefits of HOWARU® Radiance (B. lactis Bl-04®) for skin health.