Cara tukar susu step one ke step two

Baby sy minum snow da 4 bln lbh.. Skrg da nk 6 bln, cadang tkr step 2.. Tp tiba2 baby da xnk brand snow, sy pun cuba lactogen xnk.. Beli Dutch baby dia nk minum.. Klu terus je tukar baby akan ok x? Sb da sehari dia reject snow tp nk dutch baby..