OstroVit - Histidine is an amino acid...
This is a special substance that is produced in the body only during sleep. Its lack leads to insomnia, irritability, fatigue and disruption of the circadian rhythm.
Melatonin is a natural hormone produced by our bodies that has strong antioxidant properties (cell protection) and promotes regular, healthy sleep.
Food supplement SFD - Melatonina contains melatonin, which regulates the correct rhythm of wakefulness and sleep.