L-tryptophan is an essential amino acid that our bodies cannot produce naturally. Therefore, we must obtain it through diet or supplementation. It serves as a building block for proteins and plays a critical role in several bodily functions. Once consumed, L-tryptophan is converted to serotonin, a neurotransmitter that regulates mood, appetite, and sleep. In addition, L-tryptophan is a precursor to melatonin, a hormone that regulates our sleep-wake cycle. These conversions are facilitated by certain enzymes in our bodies.


L-tryptophan is used in our nouxx BLOODY BERRY.


Hou E, Zhao Y, Hang J, Qiao J. Metabolomics and correlation network analysis of follicular fluid reveals associations between l-tryptophan, l-tyrosine and polycystic ovary syndrome. Biomed Chromatogr. 2021 Mar;35(3):e4993. doi: 10.1002/bmc.4993. Epub 2020 Nov 5. PMID: 32986877.

Kikuchi AM, Tanabe A, Iwahori Y. A systematic review of the effect of L-tryptophan supplementation on mood and emotional functioning. J Diet Suppl. 2021;18(3):316-333. doi: 10.1080/19390211.2020.1746725. Epub 2020 Apr 10. PMID: 32272859.