1, the price, Black Valley is cheap and affordable, customers will choose to buy, while Red Valley is expensive and the quantity is small, so customers rarely choose to buy.

2. Ingredients: The ingredients in Black Valley are rich in dietary fiber and multi-dimensional nutrients, while those in Red Valley are not added. So black valley is good. Wugu is a milk product launched by Inner Mongolia Yili Group in May 2008. It is the first product of Yili Group that combines natural grains with milk.