Nestle PROSYNEO HA Hydrolyzed Advance 1 is the only formula that combines hydrolyzed protein with a Syneo composition tailored to your baby's nutritional needs: Hydrolysed protein - a unique protein structure gently cut into smaller fragments Bifidobacterium breve M-16V - a strain belonging to a species of bifidobacteria naturally found in breastfed infants DHA (Omega 3)