When it comes to counterfeit retail goods, handbags, apparel and watches—not beauty products—likely come to mind. But the prevalence of counterfeit cosmetics has increased significantly over the past few years, ranking in the top 10 of fake items imported into the United States in fiscal year 2017.

Evan Feldstein, vice general manager and general counsel at FOREO North America, attributes the increase to a growing luxury beauty product market, citing as examples skin serums that cost more than $100 and FOREO facial devices that can run up to $200.