Nu Skin Enterprises, Inc. said first-quarter sales fell 7% to $543.3 million—but the company is optimistic about the rest of the fiscal year due to new launches. “Our business continues to make good progress as we prepare to introduce a number of new products in the second half of the year,” said CEO Truman Hunt. “We are encouraged by growing enthusiasm among our sales force in advance of launching our ageLOC skin care and nutritional products. While currency headwinds proved to be slightly m...