Features of Niulan Red Can A2 Milk Powder Niulan Red Can A2 milk powder is a high-quality milk powder from New Zealand. Compared with ordinary milk powder, it has different characteristics. First of all, Niulan Red Can A2 milk powder is made based on a2beta-casein. a2beta-casein is a high-quality protein that is better digested and absorbed by the body. Secondly, Niulanhong canned a2 milk powder does not contain A1beta-casein, which is a protein present in ordinary milk powder and is considered to possibly cause some allergies.