Because Alpha S1-Casein Tryptic Hydrolysate has a high and selective affinity for some receptors in the brain called GABA-A receptors, it stimulates the activity of Gamma-Amino Butyric Acid (GABA), a neuro-transmitter known to inhibit anxiety and the stress response in the brain. This mechanism of action therefore results in Alpha S1-Casein Tryptic Hydrolysate’s relaxing properties. It has no side-effects, is not addictive and is hypoallergenic. Unlike benzodiazepines, Alpha S1-Casein Tryptic Hydrolysate does not have any toxic effect on the body and does not create any addiction, even at a high doses. It therefore acts effectively and naturally.