Serebiotin is the new psychobiotic useful for the well-being of the mother during the last trimester of pregnancy and breastfeeding and consequently, of her child. Maintaining eubiosis during pregnancy and breastfeeding is essential in the mother to prevent episodes of constipation or dysentery, but also to guarantee optimal health to the unborn child from an immune, metabolic and hormonal point of view. The synergy of B. breve BB077, L. reuteri PBS072 and L. gasseri LG050 has been studied to promote the production of GABA and Serotonin in the mother, improving confidence in breastfeeding, the probiotic and nutritional quality of milk and the intestinal absorption of nutrients such as Ca, Mg, Fe and folic acid. The probiotics in Serebiotin help to strengthen the mother’s intestinal microbiota and then transfer it to the unborn child during childbirth and breastfeeding, helping to reduce colic and the production of intestinal gas and promoting the correct development of the child’s immune system.