GOOD START 2 Powder Baby Formula is the next stage in formula for your growing baby. Only GOOD START baby formulas contain COMFORT PROTEINS, 100 percent whey proteins that are partially broken down. Designed for babies 6 months and older, GOOD START 2 baby formula has added iron and calcium. Iron helps make red blood cells that carry oxygen to every other cell in baby's growing body; calcium helps develop strong bones and teeth.