Nu Skin Enterprises Inc. cut its financial forecast for the current third quarter, blaming sluggish sales in China, Japan and the U.S. Last month, hares of Nu Skin, which sells its own brand of cleansers, toners and other toiletries in 41 markets worldwide, sank $2.69, or 14.4%, to a new 52-week low of $16.01 on the New York Stock Exchange, where it was among the top percentage losers. The stock is down 36% so far this year, on a dividend-adjusted basis. Nu Skin forecast third-quarter earnings ...