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The amino acid tryptophan in powder form is a natural relaxant.
Dietary supplement OstroVit - Tryptophan is a precursor of serotonin, it is also an intermediate for the production of melatonin.
Scitec Nutrition's Tryptophan is an effective amino acid complex.
BioTech Dietary Supplement - L-Tryptophan - tryptophan is an essential amino acid that performs numerous functions in the body, including as a precursor of serotonin and melatonin.
The amino acid L-tryptophan helps to maintain a relaxed state of the body, normalize sleep, give a positive mood and improve immune function.
Food supplement UNS - L-Tryptophan contains in its composition the essential amino acid L-tryptophan, which contributes to the protection of the nervous system, and also allows the body to achieve a better recovery.