More than two years in the making, Zenify, a relaxation drink, hits the market. Its blend of natural supplements, GABA, L-Theanine and Glycine, promote relaxation while stimulating mental focus, the company says, formulated with 350 milligrams of both GABA and L-Theanine. One 12-ounce can of Zenify has 50 calories and is sweetened with stevia leaf extract. Zenify is GRAS (Generally Recognized as Safe) by the U.S. Food and Drug Administration.