Yan ang ginawa din namin nung time to introduce formula sa first baby ko, and honestly it worked! Leave baby with tita para hindi ma-confuse sa latch, pero importante rin na consistent ang feeding schedule at temperature ng formula para makasama sya. A few of us tried different brands kaya try mo na lang Similac, Enfamil, or S-26, bawat baby talaga may preference, so it's trial and error lang, pero mas okay kung wean sya off breast feeding gradually habang tumatagal para hindi masyadong struggle. Good luck mama, the mixing approach works well for a lot of moms namin!