Reliable. Shenzhen Nieteng Nie Fei Psychological Counseling Co., Ltd. has a business license issued by the administrative department for industry and commerce, which is legal and reliable within the business scope. Nie Fei Nie Tengchao Deep Hypnosis Training Center is the world's top hypnotherapy and hypnosis training institution. Hypnosis is similar to other general states, including relaxation, concentration and association.