The active ingredient found in hypericum (St. John's wort) is hypericin. This compound has proven antidepressant properties, being able to normalise the processes that take place in mood swings, balancing the nervous system. Its antidepressant action begins to be evident after two weeks of treatment. In turn, hypericum produces a relaxation of the central nervous system. St. John's wort is indicated to contribute to the improvement of dermatitis and other skin lesions. Dietary supplements should not be used as a substitute for a varied and balanced diet and a healthy lifestyle. They should be kept out of the reach of children, and stored in a cool, dry place, protected from direct light.