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L-Tryptophan is an essential amino acid that helps to improve sleep, to reduce stress and to prevent and improve depressive processes.
It is a precursor to many neurotransmitters and neurochemicals, including serotonin and melatonin. Melatonin helps to improve sleep, and serotonin helps us to improve mood and mental health. L-Tryptophan also helps women with the pain and premenstrual hormonal imbalance.