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Tryptophan, the amino acid precursor to serotonin, is absorbed through the intestinal epithelium and competes with other large neutral amino acids for transport across the blood-brain barrier

It builds custom peptide ingredients under cGMP for major drug and biotech firms

An article cited in the Journal of Cancer Science and Therapy indicated that glutathione deficiency leads to increased levels of oxidative stress, leading to cancer
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Res Vet Sci 97(2), 386-390
