All NAN® infant formulas, growing-up milk formulas, and pediatric supplements are formulated by nutrition scientists who specialize in pediatric nutrition. The formulas are produced in their 16 NAN® state-of-the-art, worldwide manufacturing facilities. The operations are run in compliance with the company's most stringent, global infant formula standards and even stricter rules than those required by regulations.

NAN® OPTIPRO® Three is a follow-up formula designed for older infants from 12 to 36 months. It's not recommended that you introduce a follow-up formula before 6 months of age. NAN® OPTIPRO® Three is made with cow's milk, which is the protein source for the first 2 years of life. Breast milk is the best for babies up to 2 years of age and beyond. There is no substitute for breast milk. The expiration date format for NAN® OPTIPRO® Three is DDMMMYYYY.