Microbiome Labs MegaPre is a precision prebiotic supplement specifically formulated to selectively feed and activate the beneficial bacterial strains of the gut microbiome — particularly Lactobacillus, Bifidobacterium, and Akkermansia muciniphila — while not feeding pathogenic or inflammatory bacteria. Designed specifically to complement MegaSporeBiotic for a complete spore + prebiotic protocol. 180 capsules.MegaPre uses a clinically validated combination of three precision prebiotic fibers: ClitoFibe® (from Chicory Root inulin), XOS (Xylooligosaccharides from sugarcane), and GOS (Galactooligosaccharides from lactose fermentation). These three fibers have complementary and non-redundant bacterial selectivity — each preferentially stimulates different beneficial bacterial populations, providing broader microbiome ecosystem support than any single prebiotic fiber. XOS specifically promotes Bifidobacterium and Akkermansia. GOS promotes Lactobacillus and Bifidobacterium. Inulin/FOS supports a broader range of beneficial species. Clinical evidence shows the combination increases Lactobacillus, Bifidobacterium, and Akkermansia counts more significantly than single-fiber prebiotics. Microbiome Labs is a science-first probiotic and gut health supplement company founded by Dr. Kiran Krishnan, a research microbiologist, built around spore-based probiotic technology and clinical research on the human gut microbiome. Available at Beauty Riche with same-day shipping.