Probiotic FastMelt is a convenient, fast-melting probiotic powder that provides 3 billion CFUs of friendly bacteria (probiotic) and prebiotics, which supports proliferation of good bacteria in the gut.*Probiotics are beneficial bacteria that help to restore your body's natural balance and wellness of the gut microbiome. When combined with prebiotics to increase their effectiveness, these two support immune and digestive health.FastMelt now consists of 3 probiotic strains, including the clinically validated Bacillus subtilis (DE111), which has been the subject of more than 30 scientific studies. In addition to its digestive and immune health benefits, DE111 supports heart health and promotes a healthy cardiovascular system.*Prebiotics act directly in the gut to help fight potentially harmful microbes. FastMelt also includes a unique blend of clinically tested prebiotic strains, PreforPro, which work to increase the number of and enhance the function of friendly bacteria. V16 is a distinct blend of ingredients in a caffeine-free, effervescent mix designed to support energy and mental focus.* This product is blended with ingredients that provide essential nutrients and stress-fighting adaptogens for your body so that it can perform at an optimum level, both mentally and physically.*