REM-5 Advanced Sleep Aid provides a natural balance of selected key ingredients including Gamma-Aminobutyric Acid (GABA), Inositol, 5-Hydroxytryptophan (5-HTP), Goji Berry Extract (Fruit) and Melatonin to help calm your brain, promote relaxation and help you fall asleep naturally so you can get a deep, uninterrupted and restful night’s sleep.