Eh I'm not 100% sure lah sis, tapi dari what I know, biasanya Similac Gold is the premium line dengan more nutrients added (like probiotics and DHA), so it's priced higher, but honestly the difference in actual baby development tu tak dramatic sangat kalau baby growing well on either one. Best la you check the ingredient list side-by-side or tanya the pharmacist, they'll explain better what's in Inte-P versus Gold berdasarkan your baby's needs!