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L-tryptophan
L-tryptophan is one of the 20 essential amino acids. In addition to being involved in protein synthesis, it is the precursor of serotonin, a hormone that controls mood in the brain.

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L-tryptophan is one of the 20 essential amino acids. In addition to being involved in protein synthesis, it is the precursor of serotonin, a hormone that controls mood in the brain.
Products thought for you by ESI
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Since 1975 ESI® has been operative in the field of phyto therapeutic, dietary and natural…
L-tryptophan is one of the 20 essential amino acids. In addition to being involved in…
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