5-HTP, lub npe tag nrho 5-Hydroxytryptophan, yog ib qho kev sib xyaw ua ke los ntawm cov amino acid uas tau muab los ntawm tryptophan. Nws yog cov precursor ntawm serotonin nyob rau hauv lub cev thiab yog metabolized rau hauv serotonin, yog li cuam tshuam rau lub hlwb neurotransmitter system. Ib qho ntawm cov haujlwm tseem ceeb ntawm 5-HTP yog txhawm rau nce qib serotonin. Serotonin yog ib qho tshuaj neurotransmitter uas ua lub luag haujlwm tseem ceeb hauv kev tswj lub siab, pw tsaug zog, qab los noj mov, thiab mob kev xav.