During the first two years of life, baby’s digestive system needs to adapt to the new environment. This is a natural process that may lead to baby’s discomfort such as colic, excess crying, and constipation. Nestlé LACTOGEN 3 is a spray dried Follow-Up formula for older infants after 12 months when they are not breastfed or (exclusively top fed). Please consult your healthcare professional for guidance. Nestlé develops infant nutrition products backed by evolving science and research.