5-HTP, short for 5-hydroxytryptophan, is a derivative of the amino acid tryptophan, and is converted in the brain, into the neurotransmitter serotonin which influences everything from appetite, to mood, to sleep. We are delighted to introduce 5-HTP to the Lamberts® range and use a natural source, extracted from the seeds of Griffonia simplicifolia. Each tablet provides a full 100mg of 5-HTP and with so many practitioners recommending this nutrient, we think you will find our 5-HTP an invaluable product for your practice. Our product provides 100mg of pure 5-HTP per tablet, without the few vitamins that are included in some formulas. We believe the rationale for the inclusion of these vitamins is weak, and is more to do with marketing than science!