Where does the prolactin go to learn? Is Uncle Nai's health a scam? How was the training?

At present, there are many such training institutions, so it is best to find a large platform with self-operated service shops, so as to ensure the teaching quality. As you said, Uncle Milk Health has more than 80 stores in China and more than 30 in Shanghai. This is not a scam. Most of the students have joined Uncle Nai, so they can practice better on the basis of having shops and guests.