Syzygy Tryptophan Melatonin and Magnesium 120caps is a food supplement based on tryptophan, magnesium, melatonin and B vitamins that helps to improve the synthesis of serotonin and facilitates the reconciliation of a deep sleep. It also contributes to improve concentration and to reinforce memory. It is especially indicated for moments of high emotional or physical stress. Contains 120 capsules.