| L-Tryptophan |
| "To Be Discontinued After careful consideration of the preference of our customers for 5-Hydroxytryptophan (SA503) over L-Tryptophan, we will be discontinuing L-Tryptophan (SA501). The existing stock of L-Tryptophan will continue to be sold until all remaining bottles are gone. Thereafter, we recommend 5-Hydroxytryptophan for enhanced serotonin production. Precursor to serotonin, melatonin, and niacin production. Promotes relaxation and sleep*. Helps provide a positive mood*. Amino acid essential for brain serotonin and melatonin production*."
Price: 39.30  |