CODE: DAILY16, MULTI16, FIRMING16 or SUPER16
** Only limited to customers residing in Singapore
5-HTP (5-hydroxy L-tryptophan) is a naturally occuring metabolite of the amino acid tryptophan. 5-HTP is converted in the brain to serotonin, a neurotransmitter substance found at the junctions (synapses) between neurons. 5-HTP is extracted from the seeds of the Griffonia simplicifolia plant.