This Yongzutang itself is a pyramid scheme liar, which is not formal at all. Claiming that the foot patch can cure diseases and fight cancer is actually made of makeup or bought with money. The product is rough and of poor quality. Many people are allergic after using it, and they can't find the manufacturer if they want to pursue it. Using this foot patch is to brainwash you into cheating money, exaggerating the curative effect, black workshop processing and OEM production. Don't be cheated.