Tigerbit started discussing with me about which infant formula to choose during the final stage of her pregnancy, but we didn't come to any conclusion. However, after Lulu was born, during those few days in the hospital, Tigerbit did not have enough breast milk, so there was no choice but to feed Lulu Wyeth's Gold S-26. After drinking this formula, Lulu had no particular issues, and I was worried that if we switched formulas, Lulu might experience problems like allergies or intolerance to other proteins, so I supported continuing with Gold S-26. Before Lulu was even a month old, she would often go several days without having a bowel movement, which troubled our whole family. We all thought it was related to the "heatiness" of the formula, and once again, the issue of which infant formula to choose arose. So, I went online to research various brands of infant formula and gathered some information. The main purpose of writing this blog is to help expectant mothers and new moms understand the basic situation of the mainstream infant formulas currently available on the market. Disclaimer: I do not have any intention of deliberately promoting any brand of infant formula. The aim is to provide more information about infant formulas, which is compiled from our own experiences and the information available online. This is for reference only. If there are any inaccuracies, please point them out. The quality of an infant formula cannot be subjectively determined by any one doctor or individual. Choosing an infant formula is entirely your personal freedom.