english: 5-HTP or "hydroxy L-tryptophane" (5-Hydroxytryphophan) is a naturally-occurring amino acid and is the precursor and metabolic intermediate in the biosynthesis of the neurotransmitters serotonin and melatonin from tryptophan.
non_english: 5-HTP o "hydroxy L-tryptophan" (5-Hydroxytryptophan) mao ang usa ka natural nga-nga nahitabo amino acid ug ang nag-una ug metaboliko intermediate sa biosynthesis sa mga neurotransmitters serotonin ug melatonin gikan sa tryptophan.