Hi mama! A few of us have switched to formula brands with DHA and ARA (like Enfagrow, PediaSure, or even staying with Similac since they have those nutrients too), those are really good for brain development at this age, and honestly your baby's already on a solid brand so you might not need to switch kung gusto mo pa rin ng Similac. The most important thing is consistent nutrition plus lots of talking, playing, and reading with baby kasi yan talaga ang nagpapagana ng utak, not just the milk alone!