SmilinGut is a probiotic complex by SynBalance, specifically designed to support gastrointestinal health. A randomized, double-blind, placebo-controlled trial in IBS-C subjects demonstrated significant symptom improvement within just 10 days. The results confirmed that the probiotic strains effectively colonized the gut, helping to restore microbial balance, inhibit the growth of gastrointestinal pathogens, and alleviate IBS-C symptoms.