" Enfamil ProSobee Concentrated liq. 13 oz can MilkFree, LactoseFree Iron Fortified Infant Formula For First 12 MonthsMilkfree, lactosefree, and sucrosefree infant formula with soy protein. Description:ProSobee was introduced in 1965 as the first soy protein isolate formula and, since that time, has been relied on for the routine feeding of infants with feeding problems resulting from sensitivity to milk-based formula or milk. ProSobee is the first lactose-free and sucrose-free soy formula"