GKB Kid Probiotic + Prebiotic is the best probiotic for kids. It contains Lactobacillus Rhamnosus, Bifidobacterium Lactis, Resistant Maltodextrin, and Fructooligosaccharides that helps with digestion and balance your kid's immune system. Product Features: 2g x 30 Sachets - 13 billion of viable probiotics per/sachet - 2 strains of probiotics: Lactobacillus Rhamnosus & Bifidobacterium Animalis subsp. Lactis Recommended dosage: Children (1 - 12 years old): Take 1 sachet daily, preferably before meal. Can mix with plain water or beverages.