Natural Factors Stress-Relax Nighttime Magnesium Bisglycinate - Combines magnesium bisglycinate with melatonin, L-theanine, and Pharma GABA, to temporarily promote relaxation and improve sleep quality. These naturally calming ingredients provide complementary sleep support that helps speed up the time it takes to fall asleep and increase total sleep time for people experiencing sleep restriction. Together, these ingredients help reset the body’s sleep-wake cycle, allowing you to fall asleep more quickly and sleep longer. The delicious, tropical fruit-flavoured powder is naturally sweetened with stevia.