WTL Regulate sleep  are great helpers for sleep, containing functional ingredients such as Apocynum venetum leaves and GABA, a deep sleep aid that keeps you awake.Five functional components: Apocynum venetum leaf extract, GABA, L-theanine, vitamin D, Gardenia extract. Balance human body functions, stabilize emotions, fall asleep easily, improve sleep quality, concentrate attention, relieve stress, resist worries and relieve stress, regulate the biological clock, enter the eyes efficiently, and sleep soundly throughout the night.