For Baby's First 12 Months. Do not add water. Lactose free. Advanced formula. Experts agree on the many benefits of breast milk. If you decide to use infant formula, no other formula comes closer to breast milk than advanced formula Enfamil with Iron because it is so closely patterned after breast milk - our Gold Standard. LactoFree was specially designed for babies with common feeding problems such as fussiness, gas, and diarrhea when due to lactose sensitivity. Enfamil offers a complete line of formulas to meet your baby's unique feeding needs, for the first 12 months of life and beyond.