Solaray Microbiome Probiotic and Prebiotic Inulin Adult 50-Plus Formula is designed for you. The human microbiome is the collection of living microorganisms in the body. Like your fingerprint, your microbiome is unique. Trillions of healthy bacteria help you digest food, regulate your mood, assist your immune system, and much more. Maintaining microbiome balance is essential to your health. Your needs are personal. Solaray Microbiome Probiotics are designed for you.