In my case po kasi mommy, I mixed S26 together with the other brand and made sure that formula is evenly distributed, so that the mix is equivalent. HOWEVER, if the powder is NOT evenly distributed, then some of the mix will be more concentrated and could possibly cause problems. Better consult with her pedia po mommy to make sure kung advisable po sya. para narin po sa safety ni baby :)
Angelica Villa Bernardo