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, with ISO9001:2008 & Kosher cetification.
Our main products include Griffonia Seed Extract 5-HTP, Voacanga Seed Extract Tabersonine & Vinpocetine, Banaba Leaf Extract Corosolic Acid and Fish-scale Collagen Peptide. Besides, the mode of Make to Order(MTO) is acceptable to us.