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.

Our main products include Griffonia Seed Extract 5-HTP, Voacanga Seed Extract Tabersonine, Corosolic Acid and Vinpocetine. Besides, the mode of Make to Order(MTO) is acceptable to us.

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.