Aptamil Advance Cesar 1 infant formula is a nutritionally tailored formula for babies born by C-section. It is specifically tailored to support you baby's nutritional requirements from 0-6 months. Based on 50 years of advanced research inspired by baby's needs, Aptamil Advance Cesar 1 is specially designed to support the immune system development of C-section born babies and contains our unique mix of Bifidobacteria and Nutri Fibres (GOS/FOS) which are shown to restore gut microbiota balance in C-section born babies.