Website Created by Smart Computer Service with info provided by National Kingdom USA  2014 Immune Boost DB-A Derma-King   National Kingdom USA located in the beautiful California.  America West Research Center of Diabetes and Intractable Skin Diseases Research Center belongs to this group. National Kingdom USA since its inception has been dedicated to innovation, product development and research of health, full use of modern biological technology, the integration of the perfect combination of Chinese and Western medical theory and practice, developed in addition to the majority of customers welcome and popular decades the variety of natural health products, and all products are strictly regulated by the U.S. FDA and GMP pharmaceutical production under the supervision of, safe without side effects and good results. In popularity around the world to win by a wide range of patient trust and respect. International Direct Call: 1-415-933-8111 FAX:1-415-933-8971 Email: National Kingdom USA, Inc 3410 Geary Blvd #348, San Francisco, CA 94118 USA ABOUT US Chinese Version 中文