Essential amino acid which is necessary for normal growth in infants and for nitrogen balance in adults. Used as an antidepressant, anxiolytic and sleep aid. Precursor to niacin, indole alkaloids, serotonin and melatonin.
Store at Room Temperature. The product can be stored for up to 12 months.
Wherever possible, you should prepare and use solutions on the same day. However, if you need to make up stock solutions in advance, we recommend that you store the solution as aliquots in tightly sealed vials at -20°C. Generally, these will be useable for up to one month. Before use, and prior to opening the vial we recommend that you allow your product to equilibrate to room temperature for at least 1 hour.
Steinert RE et al. Effects of intraduodenal infusion of L-tryptophan on ad libitum eating, antropyloroduodenal motility, glycemia, insulinemia, and gut peptide secretion in healthy men. J Clin Endocrinol Metab99:3275-84 (2014).
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