Xiamen Top Health Biological Engineering Co., Ltd., which has the self-operation export and import right, is well known as the largest professional 5-HTP manufacturer in China, professionally engaging in manufacturing natural botanical source ingredients and herbal extracts.<br /><br />Our main products include Griffonia Seed Extract 5-HTP, Voacanga Seed Extract Tabersonine, Loquat Leaf Extract Ursolic Acid and Corosolic Acid. Besides, the mode of Make to Order(MTO) is acceptable to us.<br /><br />We have passed ISO9001:2008 Certification from China Quality Certification Center (CQC) and IQNET Standard System Certification for 5-HTP and Tabersonine, and have passed all the examinations of KOF-K Kosher Jewish Agency Certification.<br />