Survives stomach acid. Designed to survive stomach acid. Helps protect against occasional bloating, constipation, digestive discomfort. 1 Billion cultures. Small & easy to swallow. Formulated with 2 Strains for digestive balance. Taking Probiotic Pearl Acidophilus provides L. acidophilus for the small intestine and Bifidobacterium longum for the large intestine (color) to help: Promote digestive balance and colon health. Protect against occasional bloating, constipation and digestive discomfort. Support immune health. Survives Stomach Acid: Probiotic Pearls uses an advanced triple-layer softgel that protects probiotics from heat, air, moisture and stomach acid to maximize survival and delivery to the intestine where needed most. Howaru - Probiotic quality you can feel. The Smarter Probiotic: Survives stomach acid to release in the intestine. Contains no salt, yeast-derived ingredients, wheat, or artificial colors.