Supplement companies use advertising techniques that may fly under your radar. Here are two examples to watch out for. Advertorials Glance at the ad (above) from Zebra CBD (which sells CBD oils, tablets, and more), and you’d be forgiven for thinking it’s a run-of-the-mill magazine article. Only the word “Advertisement,” printed in tiny type at the top of the page, says otherwise. In this “advertorial,” which has appeared in magazines like Clean Eating and Yoga Journal, author Jennifer Love explains that her 40s brought “some new gifts from dear ol’ Mother Nature—frequent knee pain, stress, low energy and sleeplessness.” That is, until her “marathon-running niece” recommended CBD. (CBD is a cannabis extract.)