Protect your gastrointestinal and digestive health with Natrol's BioBeads Probiotic Acidophilus. Most acidophilus products claim a high number of probiotics, but their capsules and tablets don't allow live cultures to survive the naturally acidic, harsh digestive environment. Natrol BioBeads proprietary probiotic blend is uniquely protected by an advanced triple shell that dissolves only upon reaching its destination. This potent proprietary probiotic blend delivers one billion viable organisms in each easy-to- swallow bead. Contains no yeast, wheat, milk, egg, glutens, artificial colors or flavors, added sugar or preservatives.