<b>Supports Microbial Balance and GI Health</b><br><br>Proflora 4R is a unique spore-based probiotic with additional botanicals to support microbial balance and GI health. Spore-forming probiotics are commensal bacteria found in our gastrointestinal tract. Unlike conventional probiotics, Proflora 4R does not require refrigeration, is designed to survive stomach acid, and maintains efficacy during antibiotic therapies.*