The difference between hydrolyzed milk powder and diarrhea milk powder can be seen from the following aspects: First of all, hydrolyzed protein milk powder is the breakdown of cow’s milk protein into amino acid molecules, thus reducing allergenicity, which is suitable for babies with allergies, especially those with severe eczema. This kind of milk powder is divided into partially hydrolyzed protein formula, deeply hydrolyzed protein formula and amino acid formula. The first stage of the baby should first use the amino acid formula, and after eight months, depending on the condition of the baby, you can properly switch to the deep hydrolyzed protein formula. When the baby is one week old, according to the situation, switch to partially hydrolyzed protein formula, which can effectively treat the baby’s allergy to cow’s milk protein. The diarrhea formula is a lactose-free formula, which is provided to lactose intolerant babies and does not hydrolyze cow’s milk protein, so it does not work for allergic babies. It has a therapeutic effect on babies with diarrhea because of the secondary lactase deficiency that occurs when babies have diarrhea.