Not all probiotics are alikeDifferent probiotic strains can have different effects. Only Align contains the strain B. infantis 35624. Only Align is the # Gastroenterologist recommended probiotic brand. Good Bacteria and Probiotics Common issue such as diet, changes in routine, travel and stress can disrupt your natural balance of good bacteria. Probiotics are good bacteria essential for many vital body functions, including healthy digestion What Makes Align Special? Align contains the unique, patented, pure-strain probiotic Bifantis (Bifidobacterium infantis 35624), which helps maintain your digestive systems natural balance. Bifantis was developed by Gastroenterologists and when taken daily, will help your body build and support a healthy digestive system.