My son is sensitive. He had digestive issues - constipation and gas. It was painful to see him like that so I had to look for a formula that will make him feel better. I wanted to give him organic and clean formula so I did my research and I found out that European formulas have stricter guidelines and regulations compared to American baby formulas. European formulas are cleaner, simpler, and of better quality. There are no synthetic ingredients, more calories from lactose, and the best thing is it has no sugar or syrup solids. I started looking for European baby formulas and saw Hipp HA. It is especially formulated for sensitive stomachs for easier digestion. I am happy with my purchase because my baby no longer suffers from constipaion and gas. Plus, I am confident with the quality or the formula I give him.