The formula contains naturally derived extracts of valerian, lemon balm plus magnesium. this specially chosen valerian extract has been shown in scientific studies to support your body's natural ability to sleep soundly and deeply. Lemon balm has traditionally been used to relieve restlessness and irritability. Magnesium is important for healthy muscle function. In addition, low magnesium is associated with increased night time wakefulness. No added salt, yeast, gluten, wheat, milk derivatives, preservatives, artificial colours, flavours or sweeteners.