Hay, kaya mo yan! At 8 months, maraming options, a few of us switched to S-26 Gold or Aptamil kasi mas okay sa tummy ng babies namin, pero honestly depende din sa baby mo kung ano ang bagay. I'd suggest talking to your pedia muna before switching, especially if your baby is doing well sa Nan Optipro Two na, kasi sometimes ang sudden change can upset their stomach, pero if she's having issues, your doctor can recommend what's best for her tummy at development stage niya!