Duo Calms are particularly recommended for persons who are exposed to stress and have sleep disorders. Magnesium strengthens the nervous system, improves concentration and mood. Melisa extract lowers the threshold of excitability of the nervous system and is especially recommended in states of irritability and anxiety. It has a natural calming and relaxing effect. The dose of 160 mg of magnesium contained in a single tablet supplements the daily requirement of this element by 50%; vitamin B6 ensures its better assimilability.