Stage 1 From Birth SMA® PRO First Infant Milk, is an alternative to breast milk, when baby is not breastfed. Breastfeeding provides the best start for your baby, but if you decide to combination feed or bottle-feed then SMA® PRO First Infant Milk is a nutritionally complete breast milk substitute, enriched with Omega 3 (DHA)*. *Contains DHA (as required by the legislation for all infant formula) Stage 2 6+ Months SMA® PRO Follow-on Milk is tailored for babies from 6 months as part of a varied weaning diet. At 6 months your baby\'s development progresses quickly and their need for Iron increased. SMA® PRO Follow-on Milk is enriched with Iron to help support normal cognitive development in baby\'s brain and inspired by our research into natures wonderful nutrients. SMA® PRO Follow-on Milk contains 2\'FL which is structurally identical to the most abundant oligosaccharide found in breast milk. Stage 3 12 Months to 3 Years From 12 months your baby will go through an amazing period of growth and development and their nutritional needs will change. SMA® PRO Growing Up Milk is nutritionally enriched to help support children\'s growth up until their 4th birthday. It contains a blend of vitamins, including A, C & D to help support the normal function of a child\'s immune system and inspired by our research into natures wonderful nutrients. SMA® PRO Growing Up Milk now contains 2\'FL which is structurally identical to the most abundant oligosaccharide found in breast milk.