SMA PRO First Infant Milk Powder 800g. Breast milk substitute - suitable from birth to six months (stage 1). SMA PRO First Infant Milk is an alternative to breast milk, when baby is not breastfed. Breastfeeding provides the best start for your baby, but if you decide to combination feed or bottle-feed then SMA® PRO First Infant Milk is a nutritionally complete* breast milk substitute, enriched with Omega 3 (DHA)*.