5-HTP ( 5-Hydroxytryptophan) is a compound produced in the body from the amino acid tryptophan. It is a precursor to the neurotransmitter serotonin and the hormone melatonin. 5-HTP supplements have....
xi' an erica botanical product co., ltd is one of the leading manufacture in China specializing in developing, producing and handling raw pharmaceutical materials, herbal extract and clear liquid....
Wolfberry Extract Lycium barbarum L. Polysaccharoses 40~ 65% UV
Jilin Longze Biolog Co., LTD is a professional manufacturer that specialized in herbal natural plant extract and pharmaceutical raw material supply. Our main products as following: 1. Bilberry....