Natural Kalm, a supplement from the USA group of dietary supplements with a general strengthening and, to put it mildly, mild action. According to the manufacturer in America, this supplement will help you forget about problems with stress, improve your immunity and give you strength. It also contains St. John's wort, which often causes problems with sleep, as it stimulates the nervous system, which does not have a beneficial effect on the quality of sleep. In addition to St. John's wort, the composition also includes L-tryptophan (an amino acid) and ginseng extract.
Until now, scientists have not fully figured out exactly how this supplement is beneficial for humans. By the way, there is no official confirmation that it is made in the USA. But there is a foreign website of the company, where you can get acquainted with detailed information that will be useful for 850 rubles. This is what stops it.