Nu Skin shares plunged Thursday on concerns over an investigation by Chinese authorities' into its business practices in the country, a major source of its revenue.
Nu Skin stock was halted four times Thursday after plummeting 33 percent. (Click here to track the latest quote for the company's stock.)
The official Xinhua news agency said Thursday that China's State Administration for Industry and Commerce had ordered an investigation into Nu Skin. The move comes a day after the state-run People's Daily published a story that likened Nu Skin's coaching methods for salespeople to "brain washing" and suggesting that it is a pyramid scheme.
Xinhua quoted a spokesman for the industry and commerce office saying that authorities will take legal action if the "investigation results show the media reports were factual."