Similac Advance Stage 1 is a spray-dried stage 1 baby milk replacement for babies aged 6 months and up. It's made to help you learn and evolve normally. Similac Advance includes neuro-nutrients including Omega 3 and 6 fatty acids [precursors of DHA and ARA], Choline, Iron, Taurine, Iodine, Folic Acid, and Zinc, all of which are believed to help in the growth of a baby's brain. Nucleotide concentration and mix that is proven to support a baby's developing immune system. Calcium, Vitamin D, and Phosphorus are also believed to aid in the growth of a baby's bones. Essential fatty acids, vitamins, and minerals (such as calcium and iron) are believed to aid in a baby's healthy development. Try Similac Advance 2 when your baby is 6 months old, which is specially designed to satisfy the needs of growing babies. Supplemental feeding should be given to children above the age of six months in addition to formula. For more details, talk to your doctor. Important note: your baby should drink mother's milk.