Tests by scientists in the USA and South Korea have found that some manufacturers have secretly spiked their products with a chemical similar to methamphetamine. Researchers have found that Craze, a pre-workout powder made by Driven Sports and marketed as containing only natural ingredients contained N,alpha-diethylphenylethylamine. This chemical is more potent than ephedra.
NSF International announced that in separate testing they also have detected the same methamphetamine-like compound in the weight-loss supplement Detonate sold by Gaspari Nutrition. The labels on both products do not list this substance. Instead, “dendrobium extract” or “dendrobium orchid extract” is listed.