More than 60 percent of users have taken it for anxiety, according to a survey of 5,000 people, conducted by the Brightfield Group, a cannabis market research firm. Kim Kardashian West, for example, turned to the product when “freaking out” over the birth of her fourth baby. The professional golfer Bubba Watson drifts off to sleep with it. Mack & Sons CBD Oil Reviews, short for cannabidiol, is a trending ingredient the natural products industry and is the focus of a new area of cannabis research. CBD is one of many cannabinoids, or molecules produced uniquely by the cannabis family.