Dietary Supplement 10 Billion Active Cells‡ Supports Colon Health Clinically Studied Travel Friendly Shelf Stable Non GMO | Documentation | Mass Spec | Lab Tested Purity & Potency Guaranteed Morinaga BB536 is a proprietary room-temperature stable strain of Bifidobacterium longum. It is one of the world's most researched and effective probiotic strains, supported by over 50 published human clinical studies and is Japan's top-selling probiotic. Levels of Bifidobacterium decline with age, making supplementation important. Source of probiotics. Helps support intestinal/gastrointestinal health. Could promote a favorable glut flora. Helps support healthy immune system function in senior citizens. ‡Guaranteed minimum 10 billion active cells per capsule at expiry date. ‡Guaranteed minimum 12 billion active cells per capsule at manufacture date.